Sahih Muslim 4350
صحيح مسلم#4350Sahihحَدَّثَنِي أَبُو الطَّاهِرِ، وَحَرْمَلَةُ بْنُ يَحْيَى، قَالَ أَبُو الطَّاهِرِ حَدَّثَنَا وَقَالَ، حَرْمَلَةُ أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، أَخْبَرَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ، وَسُلَيْمَانُ، بْنُ يَسَارٍ مَوْلَى مَيْمُونَةَ زَوْجِ النَّبِيِّ صلى الله عليه وسلم عَنْ رَجُلٍ مِنْ أَصْحَابِ رَسُولِ اللَّهِ صلى الله عليه وسلم مِنَ الأَنْصَارِ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَقَرَّ الْقَسَامَةَ عَلَى مَا كَانَتْ عَلَيْهِ فِي الْجَاهِلِيَّةِ .
Sulaiman b. Yasar, the freed slave of Maimuna, the wife of Allah's Apostle (ﷺ), narrated from one of the Ansari Companions of Allah's Messenger (ﷺ) that Allah's Messenger (ﷺ) retained (the practice) of Qasama as it was in the pre-Islamic days
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: 28:9