Musnad Ahmad 304:12

Abdullah ibn Ahmad said: I read to my father, Mansur ibn Salamah al-Khuza'i, who said: Sulayman ibn Bilal informed us, saying: Abu Wajzah al-Sa'di narrated to me, or informed me, that he heard Umar ibn Abi Salamah, the stepson of the Prophet, may Allah bless him and grant him peace, saying: The Messenger of Allah, may Allah bless him and grant him peace, called me and said: "Draw near, O my son, mention the name of Allah, and eat from what is in front of you." Abdullah ibn Ahmad said: Luwayn narrated it to us, saying: Sulayman ibn Bilal narrated to us, from Abu Wajzah, from Umar ibn Abi Salamah, from the Prophet, may Allah bless him and grant him peace, the like of it.