Question: why is muzdalifah important in hajj?
Answer: At Muzdalifah, pilgrims gathered pebbles for a symbolic stoning of the devil ritual which begins on Sunday, which is also the start Eid al-Adha feast of sacrifice marked by the world's more than 1.5 billion Muslims. ... The ritual at Arafat is the most day of Hajj and is considered compulsory for a successful pilgrimage.