Musnad Ahmad 30:1410

'Affan narrated to us, Hammad ibn Salamah narrated to us, from Muhammad ibn 'Amr, from Abu Salamah, from Abu Hurairah, that the Messenger of Allah (peace and blessings of Allah be upon him) said: "I saw in what the sleeper sees as if there were two bracelets of gold in my hands. So I blew upon them, and they fell. I interpreted them to be Musaylimah."