Jami` at-Tirmidhi 2765
جامع الترمذي#2765Sahihحَدَّثَنَا سَعِيدُ بْنُ عَبْدِ الرَّحْمَنِ الْمَخْزُومِيُّ، وَغَيْرُ، وَاحِدٍ، قَالُوا حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عن عَبَّادِ بْنِ تَمِيمٍ، عَنْ عَمِّهِ، أَنَّهُ رَأَى النَّبِيَّ صلى الله عليه وسلم مُسْتَلْقِيًا فِي الْمَسْجِدِ وَاضِعًا إِحْدَى رِجْلَيْهِ عَلَى الأُخْرَى . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَعَمُّ عَبَّادِ بْنِ تَمِيمٍ هُوَ عَبْدُ اللَّهِ بْنُ زَيْدِ بْنِ عَاصِمٍ الْمَازِنِيُّ .
Narrated 'Abbad bin Tamim:from his paternal uncle, that he saw the Prophet (ﷺ) reclining in the Masjid, and placing one of his feet atop another
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:
In-book reference: 43:35