Mu'jam Kabir Tabarani 154 — I went out with my father for the Friday

Abu Ishaq (may Allah have mercy on him) said: I went out with my father for the Friday prayer, and I was a boy at the time. When Ali (may Allah be pleased with him) came out and ascended the pulpit, my father said to me: "O Amr! Stand up and look at the Commander of the Faithful." The narrator said: So I stood up, and there he was, standing on the pulpit; his beard and head were white, and he was wearing a lower garment and a cloak, with no shirt on him. The narrator said: I did not see him sit on the pulpit until he came down from it. We asked Abu Ishaq: "Did he recite the qunut?" He said: "No."