Musnad Ahmad 8:20

'Affan narrated to us, Hammad bin Salamah narrated to us, 'Asim bin Bahdalah informed us, from Mus'ab bin Sa'd, from his father, that the Prophet (peace and blessings of Allah be upon him) was brought a bowl, and he ate from it, and some remained. The Messenger of Allah (peace and blessings of Allah be upon him) said: "A man from this mountain pass, one of the people of Paradise, will come and eat this remainder." Sa'd said: "I had left my brother 'Umayr performing ablution." He said: "So I said: 'It is 'Umayr.'" He said: "Then 'Abdullah bin Salam came and ate it."