(3) باب الأَكْلِ مِمَّا يَلِيهِ
Narrated Wahb bin Kaisan Abi Nu'aim:
A meal was brought to Allah's Messenger (ﷺ) while his step-son, `Umar bin Abi Salama was with him. Allah's Messenger (ﷺ) said to him, "Mention the Name of Allah and eat of the dish what is nearer to you."
Reference: Sahih al-Bukhari 5378
In-book reference: Book 70, Hadith 6
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 65, Hadith 290