Musnad Ahmad 5:529

Waki’ narrated to us, Sufyan narrated to us, from Abu Ishaq, from Najiyah ibn Ka’b, from Ali, who said: When Abu Talib died, I came to the Prophet, peace and blessings of Allah be upon him, and said: "Your straying old uncle has died." He said: "Go and bury him, and do not do anything until you come to me." He said: So I went and buried him. Then he commanded me, so I performed ghusl (ritual washing). Then he invoked blessings for me with supplications that I would not love to have in exchange for them anything that exists.