190 Yahya related to me from Malik from Jafar ibn Muhammad fromhis father from Ali ibn Abi Talib that the Messenger of Allah, mayAllah bless him and grant him peace, killed some of his sacrificialanimals himself, and someone else killed the rest.
USC-MSA web (English) reference: Book 20, Hadith 190
Arabic reference: Book 20, Hadith 889