Muwatta Imam Malik Book of The Description of the Prophet ﷺ, Hadith 32

Yahya related to me from Malik from Abu Nuaym that Wahb ibn Kaysan said, "The Messenger of Allah ﷺ was brought food while his stepson Umar ibn Salama was with him. The Messenger of Allah ﷺ said to him, 'Say "Bismillah," and eat what is in front of you.' "

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ أَبِي نُعَيْمٍ، وَهْبِ بْنِ كَيْسَانَ قَالَ أُتِيَ رَسُولُ اللَّهِ ﷺ بِطَعَامٍ وَمَعَهُ رَبِيبُهُ عُمَرُ بْنُ أَبِي سَلَمَةَ فَقَالَ لَهُ رَسُولُ اللَّهِ ﷺ " سَمِّ اللَّهَ وَكُلْ مِمَّا يَلِيكَ " .