Sunan Ibn Majah 244
سنن ابن ماجه#244SahihIt was narrated from Shu'aib bin 'Abdullah bin 'Amr that his father said:"The Messenger of Allah was never seen eating while reclining or making two men walk behind him." (Sahih) Other chains with the same meanings
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Zubair Ali ZaiSahih