A boy stands amidst Muslims performing the Eid al-Adha prayer in Karachi, Pakistan September 25, 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/Athar Hussain