Musnad Ahmad 932:13

Abdullah narrated to us, Hashim ibn al-Harith narrated to us, Ubaydullah ibn Amr narrated to us, from Abdullah ibn Muhammad ibn Aqil, from al-Tufayl, from his father, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "When the Day of Resurrection comes, I will be the leader of the prophets, their orator, and the possessor of their intercession, without boast."