Musnad Ahmad 3839

Shaqeeq bin Salamah said: I heard Ibn Mas'ood say: The Messenger of Allah (ﷺ) said: "I saw Jibreel at Sidratal-Muntaha; he had six hundred wings.” He said: I asked 'Asim about the wings and he refused to tell me. Then one of his companions told me that the wing (filled the area between) the east and the west.