In one of its rituals, adherents  throw stones at three walls and rapidly walk back and forth between two hills.
On the holiday that ends this event, a third of a slaughtered animal's meat is donated to the poor. A   sheep is sacrificed after the ritual shaving of one's hair in an optional variant on this event. Male  participants don two white sheets of cloth to prepare for this event. In one of its rituals, adherents  throw stones at three walls and rapidly walk back and forth between two hills. The Feast of Sacrifice,  or Eid al-Adha, ends this event, during which participants make seven counter- clockwise trips around  the Kaaba. Name this pillar of Islam which requires Muslims to make a pilgrimage to Mecca.
On the holiday that ends this event, a third of a slaughtered animal's meat is donated to the poor.
Hajj [prompt on pilgrimage to Mecca or Eid al-Adha; do not accept “hijra” or “hejira”]