The Stoning of the Devil is literally “throwing of the jamarāt (pebbles).
This is part of the annual Islamic Hajj pilgrimage to the holy city of Mecca in Saudi Arabia. During the ritual, Muslim pilgrims throw pebbles at three walls (formerly pillars), called jamarāt, in the city of Mina just east of Mecca.
It is one of a series of ritual acts that must be performed in the Hajj. It is a symbolic reenactment of Abraham’s hajj, where he stoned three pillars representing the temptation to disobey God and preserve Ishmael.