Musannaf Ibn Abi Shaybah 39512 — What Abu Bakr (Ibn Abi Shaybah)

Sayyiduna Sa'd (may Allah be pleased with him) said: On the day of Uhud, on the right side and on the left side of the Prophet (peace and blessings be upon him), I saw two men wearing white clothes. I had not seen them before that, nor did I (ever) see them after it.