MECCA, SAUDI ARABIA - SEPTEMBER 17: A prospective pilgrim prays on the top of the Jabal Thawr, a mountain which is notable for housing a cave known as Ghar al-Thawr, in which the Islam's Prophet Muhammad and his companion Abu Bakr hid from their persecuters, the Quraish, during the migration to Medina, as he takes part in the hajj rituals in Mecca, Saudi Arabia on September 17, 2015. (Photo by Ozkan Bilgin/Anadolu Agency/Getty Images)