Musannaf Ibn Abi Shayba 17:1117

Abu al-Ahwas narrated to us, from Simak, from Khalid, who said: I came to al-Rahba, and behold, I was among a group of people sitting, nearly thirty or forty men, so I sat with them. Then Ali came out to us, and I did not see him disapprove of anyone among the people except me. He said: "Is there not a man who will ask me, so that he may benefit, and his companions may benefit?"