The annual pilgrimage related to Eid al-Adha for pilgrims in Mecca is Hajj. Eid al-Adha begins on 10 Dhu al-Hijjah, immediately after pilgrims’ central gathering on Arafah Day during the pilgrimage.
Hajj is one of Islam’s Five Pillars and is required once in a lifetime for Muslims who are physically and financially able to undertake it. Its rites include entering ihram, circling the Kaaba, walking between Safa and Marwah, standing at Arafat, spending time at Muzdalifah, and symbolically stoning the pillars at Mina.
Eid al-Adha is celebrated worldwide, including by Muslims who are not in Mecca, but its timing and rituals are closely connected to Hajj. Umrah is a separate, voluntary pilgrimage that can be performed at other times of year and does not replace Hajj when Hajj is obligatory.