What is Eid Al Adha? Eid Al-Adha is a festival celebrated among Muslims all over the world in remembrance of the sacrifice that Prophet Ibrahim (A.S.) made out of his strong faith in Allah. Ibrahim (AS) showed a willingness to sacrifice his son Prophet Ismail (A.S.) but his son was replaced with a lamb by Allah. Allah was so pleased with Ibrahim’s (A.S.) submission to Him that He made this demonstration of sacrifice and faith a permanent part of a Muslim’s life. This event is mentioned in Quran - Surah As-Saffat (37:102) . Hence, every year on the 10th of Dhul Hijjah, Muslims all over the world celebrate Eid al-Adha. On this day, Muslims slaughter a lamb, sheep, goat or a camel to honor the sacrifice of Ibrahim (AS) . Both Eid ul Fitr and Eid Al-Adha have great significance in Islam. Fasting on Eid al-Adha and Eid ul-Fitr are strictly forbidden.