Jabalah ibn Suhaym reported that a man asked Sayyidina lbn Umar(RA) about sacrifice, Is it wajib? He said, “Allahs Messenger (SAW) and the Muslims did make a sacrifice. But, he repeated his question and he said, Do you not understand? AlIahs Messenger and the Muslims did make a sacrifice.
[Ibn e Majah 3124]