Sahih Muslim 795
صحيح مسلم#795Sahihقَالَ عَمْرٌو وَحَدَّثَنِي بُكَيْرُ بْنُ الأَشَجِّ، عَنْ كُرَيْبٍ، مَوْلَى ابْنِ عَبَّاسٍ عَنْ مَيْمُونَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّ النَّبِيَّ صلى الله عليه وسلم أَكَلَ عِنْدَهَا كَتِفًا ثُمَّ صَلَّى وَلَمْ يَتَوَضَّأْ .
Ibn 'Abbas reported it on the authority of Maimuana, the wife of the Messenger of Allah (ﷺ), that the Messenger of Allah (ﷺ) took (a piece of goat's) shoulder at her place, and then offered prayer but did not perform ablution
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:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 3:116