A boy sells a pair of goats at a livestock market on the eve of the Eid al-Adha festival in the old quarters of Delhi October 15, 2013. Muslims around the world celebrate Eid al-Adha by the sacrificial killing of sheep, goats, cows and camels to commemorate Prophet Abraham's willingness to sacrifice his son Ismail on God's command. REUTERS/Anindito Mukherjee (INDIA)