Eid al-Adha (Bakra Eid), also called the "Sacrifice Feast", is celebrated worldwide each year in islamic religion. Muslims believe that Allah commanded Ibrahim (Abraham) to sacrifice his son. Ibrahim followed God's orders, but his son was replaced by a male goat at the last moment. it is called Qurbon Hayiti (Kurban Eid).
On this festival devotees offer the Eid al-Adha prayers at the mosque. According to some traditional Islamic law men should go to mosque to perform eid prayer. Women are also highly encouraged to attend, although it is not compulsory. Menstruating women do not participate in the formal prayer, but should be present to witness the goodness and the gathering of the Muslims.