Sayyiduna Mahmud bin Labid (may Allah be pleased with him) narrates: Sayyiduna al-Harith bin al-Simmah (may Allah be pleased with him) said: "On the day of Uhud, when the Prophet (peace and blessings be upon him) was in the mountain pass, he asked me: 'Have you seen Abd al-Rahman bin Awf?' I said: 'Yes! O Messenger of Allah! I saw him at the foot of the mountain, with the polytheists surrounding him. I had begun to head towards him, then I saw you, so I came to you.' The Prophet (peace and blessings be upon him) said: 'The angels are fighting alongside him.'" Sayyiduna al-Harith (may Allah be pleased with him) says: I then went back to Sayyiduna Abd al-Rahman (may Allah be pleased with him) and found him among seven enemies who had been struck down. I said to him: "You have triumphed! Did you kill all of these?" He said: "As for Artat bin Shurahbil and this man, I killed the two of them; but as for the rest, I did not see the one who killed them." The narrator says: I said: "Allah and His Messenger have spoken the truth."
Al-Tabarani and al-Bazzar recorded it; its chain contains Abd al-Aziz bin Imran, who is da'if (weak).