Eid al-Adha (“festival of sacrifice”), also called Id-ul-Zuha, Feast of the Sacrifice, the Major Festival and the Greater Eid, is an important 3-day religious holiday celebrated by Muslims worldwide to honor the willingness of Ibrahim (Abraham) to sacrifice his son Ismail (Ishmael) as an act of obedience to God, before God intervened to provide him with a sheep to sacrifice instead. Here we are sharing some Eid-ul-adha greeting cards for your loved ones..