Musnad Ahmad 25:1022

Abu al-Jawwab narrated to us, Ammar—meaning Ibn Ruzayq—narrated to us, from Muhammad ibn Abd al-Rahman, from Abdullah ibn Abi Najih, from Mujahid, from Abd al-Rahman ibn Abi Layla, from Ali, who said: "The Messenger of Allah, may Allah bless him and grant him peace, drove one hundred camels for sacrifice." He then mentioned the like of it.