Mandatory Credit: Photo by Yousef Masoud/SOPA Images/Shutterstock (12223340p) Palestinian women and children perform the Eid al-Adha prayer in the "square" in the southern Gaza Strip. Eid al-Adha is the holiest festival in Islam, where Muslims slaughter cows and sheep in memory of the Prophet Ibrahim (Ibrahim) for the sacrifice of his son Ismail, as well as go to Mecca to perform the Hajj. Eid al-Adha celebration in Gaza, Palestine - 20 July 2021