Mandatory Credit: Photo by Tunahan Turhan/SOPA Images/Shutterstock (12222676e) Muslims offer Eid-al-Adha prayers at Atayurt Central Mosque. Eid prayer is performed during Ramadan and Eid-al-Adha, which are considered sacred for Muslims. Eid al-Adha or the Festival of Sacrifice is celebrated throughout the Muslim world as a commemoration of Abraham's willingness to sacrifice his son for God, and cows, goats and sheep are traditionally slaughtered on the holiest day. Eid-al-Adha prayers in Ankara, Turkey - 20 Jul 2021