Sunan Abi Dawud 3770
سنن أبي داود#3770Sahihحَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنْ شُعَيْبِ بْنِ عَبْدِ اللَّهِ بْنِ عَمْرٍو، عَنْ أَبِيهِ، قَالَ مَا رُئِيَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَأْكُلُ مُتَّكِئًا قَطُّ وَلاَ يَطَأُ عَقِبَهُ رَجُلاَنِ .
Narrated Abdullah ibn Amr ibn al-'As: The Messenger of Allah (ﷺ) was never seen reclining while eating, nor walking with two men at his heels
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 28:35