The Messenger of Allah ﷺ said, "As for me, I do not eat while reclining."
حدثنا قتيبة حدثنا شريك عن علي بن الأقمر
قال رسول الله ﷺ أما أنا فلا آكل متكئا
No references are available.
[Sahih]. Bukhari also narrated it, in the Book of Foods, Chapter on Eating While Reclining, hadith no. 5398, 5399, from the hadith of Ali bin Aqmar, with the same wording.On this subject there are also narrations from Ali [I could not locate it], Abdullah bin Amr [Abu Dawud, hadith no. 3771, and Ibn Majah, hadith no. 244], and Abdullah bin Abbas [Nasai in Al-Kubra, 4/171, hadith no. 6743].The hadith of Sufyan Thawri was narrated by Tirmidhi in Al-Shamail, hadith no. 132.