Musnad Ahmad 3757

Abu Ishaq ash-Shaibani said: I came to Zirr bin Hubaish and I felt at ease with him. There were some young men with him who said to me: Ask him (about the verse), “And was at a distance of two bows' length or (even) nearer" (an-Najm 53:9). So I asked him and he said: 'Abdullah bin Mas'rod (رضي الله عنه) told us that The Messenger of Allah (ﷺ) saw Jibreel with six hundred wings.