Millions of Muslims are taking part in the final phase of their Hajj pilgrimage in Saudi Arabia. Pilgrims who came to Mecca earlier this week are now taking part in the ritual stoning of the devil.
Muslims Take Part in the Hajj

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Muslim pilgrims cast stones at a pillar, symbolizing the stoning of Satan, in a ritual called "Jamarat," a rite of the annual Hajj, the Islamic faith's most holy pilgrimage, in Mina near the Saudi holy city of Mecca, Saudi Arabia, Friday, Oct. 26, 2012.

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Youssef, 3, a Muslim pilgrim from Egypt walks with his grandfather to casts stones at a pillar near the Saudi holy city of Mecca, Saudi Arabia, October 26, 2012.

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A Muslim pilgrim has his head ritually shaved after he cast stones at a pillar in Mina near the Saudi holy city of Mecca, October 26, 2012.

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Muslim pilgrims pray on a rocky hill called the Mountain of Mercy, on the Plain of Arafat near the holy city of Mecca, Saudi Arabia, in the early hours of October 25, 2012.