Jami` at-Tirmidhi 1836
جامع الترمذي#1836Sahihحَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ جَعْفَرِ بْنِ عَمْرِو بْنِ أُمَيَّةَ الضَّمْرِيِّ، عَنْ أَبِيهِ، أَنَّهُ رَأَى النَّبِيَّ صلى الله عليه وسلم احْتَزَّ مِنْ كَتِفِ شَاةٍ فَأَكَلَ مِنْهَا ثُمَّ مَضَى إِلَى الصَّلاَةِ وَلَمْ يَتَوَضَّأْ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . وَفِي الْبَابِ عَنِ الْمُغِيرَةِ بْنِ شُعْبَةَ .
Narrated Ja'far bin 'Amr bin Umayyah Ad-Damri: From his father who said that he saw the Prophet (ﷺ) making incisions (with a knife) into a piece of a lamb shoulder which he ate from, then he went to perform Salat without performing Wudu'. [Abu 'Eisa said:] This Hadith is Hasan Sahih and there is something on this topic from Al-Mughirah bin Shu'bah
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: 25:52