Musnad Ahmad 33:434

Muhammad ibn Maymun narrated to us, Ja'far narrated to me, from his father, from Jabir: "The sacrificial camels that the Messenger of Allah, peace and blessings of Allah be upon him, slaughtered were one hundred camels. He slaughtered sixty-three with his own hand, and Ali slaughtered the remainder. The Prophet, peace and blessings of Allah be upon him, ordered that a piece of meat be taken from every camel, and they were placed in a pot, then they both drank from its broth."