A butcher uses a rope to tie legs of a calf to slaughter it on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

Butchers slaughter a calf on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

A butcher shows his bloodied handfrom a just-slaughtered calf on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

A butcher makes hand prints on the wall from the blood of a just-slaughtered calf on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

A butcher walks across the blood of a just-slaughtered calf on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

A Muslim boy offers a special prayer at a shrine on the eve of the Eid al-Adha festival on the outskirts of Ahmedabad, India, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amit Dave 

Butchers slaughter a calf on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

A butcher uses a rope to tie a calf before slaughtering it on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

Butchers slaughter a calf on the first day of Eid al-Adha festival in Toukh, El-Kalubia governorate, northeast of Cairo, Egypt, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Amr Abdallah Dalsh 

A child walks on shoes left by Muslims attending Eid al-Adha prayers at a playground in Kochi, one of the main cities of the southern state of Kerala, India, September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. Muslims in Kerala celebrated Eid al-Adha on Thursday. REUTERS/Sivaram V 

A boy feeds his goats as he waits for customers at a livestock market on the eve of the Eid al-Adha festival in Kolkata, India, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Rupak De Chowdhuri 

A father and his son load a pair of goats into the boot of a taxi after purchasing them from a livestock market on the eve of the Eid al-Adha festival in Kolkata, India, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Rupak De Chowdhuri 

Children watch the sacrifice of a buffalo after Eid al-Adha prayers on the outskirts of Peshawar, Pakistan September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Khuram Parvez 

Men offer Eid al-Adha prayers on the outskirts of Peshawar, Pakistan September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Khuram Parvez 

A child watches the sacrifice of a buffalo after Eid al-Adha prayers on the outskirts of Peshawar, Pakistan September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Khuram Parvez 

Men prepare to sacrifice a camel after Eid al-Adha prayers on the outskirts of Peshawar, Pakistan September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Fayaz Aziz 

Palestinians attend Eid al-Adha prayers in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Palestinians perform an Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

A Palestinian man visits the grave of his relative on the first day of the Eid al-Adha festival at a cemetery in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

A Palestinian girl attends Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Palestinians attend Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

A Palestinian woman attends Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Palestinians perform Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Senior Hamas leader Ismail Haniyeh (C) leads Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Senior Hamas leader Ismail Haniyeh (C) shakes hands with a man as he arrives to lead Eid al-Adha prayer in Khan Younis in the southern Gaza Strip September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

A trader sleeps amid his goats at a livestock market on the eve of the Eid al-Adha festival in Kolkata, India, September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. Eid al-Adha in Kolkata falls on Friday. REUTERS/Rupak De Chowdhuri TPX IMAGES OF THE DAY

Muslims offer Eid al-Adha prayers at a playground in Kochi, one of the main cities of the southern state of Kerala, India, September 24, 2015. Muslims across the world celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. Muslims in Kerala celebrated Eid al-Adha on Thursday. REUTERS/Sivaram V

A balloon is seen as Muslim women attend an Eid al-Adha mass prayer at Sunda Kelapa port in Jakarta September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

Muslim people sit on wooden boats as they attend an Eid al-Adha mass prayer at Sunda Kelapa port in Jakarta September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

People pray near wooden boats during an Eid al-Adha mass prayer at Sunda Kelapa port in Jakarta September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

A Muslim father holds his son as they stand near wooden boats during an Eid al-Adha mass prayer at Sunda Kelapa port in Jakarta September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

Indonesian Muslims stand near a cow before it is slaughtered and the meat distributed to the poor at Matraman mosque of Jakarta, September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

A man stands near a wooden boat as he attends an Eid al-Adha mass prayer at Sunda Kelapa port in Jakarta September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

Filipino Muslims pray during Eid Al-Adha celebrations in a Luneta Park in Manila September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ezra Acayan 

A child holds a balloon as Muslim women attend an Eid al-Adha mass prayer at Sunda Kelapa port in Jakarta September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Beawiharta 

Filipino Muslims pray during Eid Al-Adha celebrations in a Luneta Park in Manila September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ezra Acayan

A girl plays with a balloon while waiting for morning prayers to begin during Eid Al-Adha celebrations at a Luneta Park in Manila September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ezra Acayan

A man leads a sacrificial bull he bought at the animal market outside Lahore, Pakistan September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Mohsin Raza 

A man does tricks on his bicycle on a highway as the Eid holiday begins in Peshawar, Pakistan September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Khuram Parvez 

A boy carries skewers to be sold as the Eid holiday begins in Peshawar, Pakistan September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Khuram Parvez 

Kashmiri people weigh a sheep before selling it at a livestock market ahead of the Eid al-Adha festival in Srinagar September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. Eid al-Adha in Kashmir falls on Friday. REUTERS/Danish Ismail 

Palestinian men carry a goat into a truck at a livestock market, ahead of the Eid al-Adha festival, in the West Bank city of Nablus September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Abed Omar Qusini 

Palestinian customers buy candies from a vendor at a shop in the old market ahead of the Eid al-Adha festival, in the West Bank city of Nablus September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Abed Omar Qusini 

A Palestinian vendor sells traditional cookies ahead of the Eid al-Adha festival, in the West Bank city of Nablus September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Abed Omar Qusini 

A Palestinian man rides a motorcycle carrying a sheep ahead of the Eid al-Adha festival in Khan Younis in the southern Gaza Strip September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Palestinians shop as a mannequin displaying a headscarf and robe is seen at a market ahead of the Eid al-Adha festival in Khan Younis in the southern Gaza Strip September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Ibraheem Abu Mustafa 

Goats are led across a busy street after they were purchased from a makeshift livestock market ahead of the Eid al-Adha festival in Jakarta September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Darren Whiteside

Men drive away with a goat purchased from a makeshift livestock market ahead of the Eid al-Adha festival in Jakarta, Indonesia September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Nyimas Laula

Goats are led across a busy street after they were purchased from a makeshift livestock market ahead of the Eid al-Adha festival in Jakarta September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Darren Whiteside

Goats are led across a busy street after they were purchased from a makeshift livestock market ahead of the Eid al-Adha festival in Jakarta September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Nyimas Laula TPX IMAGES OF THE DAY

A girl looks at goats inside a pen at a makeshift livestock market ahead of the Eid al-Adha festival in Jakarta September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Darren Whiteside

Traders wash a goat at a livestock market ahead of the Eid al-Adha festival in Ahmedabad, India, September 23, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Feast of the Sacrifice, which marks the end of the annual haj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. Eid al-Adha in India falls on September 25. REUTERS/Amit Dave 

Workers carry a lamb and place it in a cart at a livestock market, ahead of Eid al-Adha in Benghazi, Libya, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

People who buy sheep at a livestock market, ahead of Eid al-Adha in Benghazi, Libya, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

A worker transports a sheep in a wheelbarrow at a livestock market, ahead of Eid al-Adha in Benghazi, Libya, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

A sheep is tied before being sold at a livestock market, ahead of Eid al-Adha in Benghazi, Libya, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

Boys pull a sheep before buying it at a livestock market, ahead of Eid al-Adha in Benghazi, Libya, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

A sheep looks on at a livestock market, ahead of Eid al-Adha in Benghazi, Libya, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

People buy sheep at a livestock market, ahead of Eid al-Adha, in Benghazi, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori 

People buy sheep at a livestock market, ahead of Eid al-Adha, in Benghazi, September 22, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha or the Festival of Sacrifice, which marks the end of the annual hajj pilgrimage, by slaughtering goats, sheep, cows and camels in commemoration of the Prophet Abraham's readiness to sacrifice his son to show obedience to Allah. REUTERS/Esam Omran Al-Fetori