Musannaf Ibn Abi Shayba 27:451

Waki’ narrated to us, from Sufyan, from Abu Ishaq, from Najiya 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: "O Messenger of Allah, your misguided old uncle has died." He said: "Go and bury him, then do not speak to me about anything until you come to me." He said: So I buried him, then I came to him. He commanded me, so I performed ghusl (ritual washing). Then he supplicated for me with supplications that I would not love to have in exchange for them anything that is upon the earth.