Sahih Muslim 708
صحيح مسلم#708Sahihوَحَدَّثَنَا الْحَسَنُ بْنُ أَحْمَدَ بْنِ أَبِي شُعَيْبٍ الْحَرَّانِيُّ، حَدَّثَنَا مِسْكِينٌ، - يَعْنِي ابْنَ بُكَيْرٍ الْحَذَّاءَ - عَنْ شُعْبَةَ، عَنْ هِشَامِ بْنِ زَيْدٍ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ يَطُوفُ عَلَى نِسَائِهِ بِغُسْلٍ وَاحِدٍ .
Anas reported:The Messenger of Allah (ﷺ) used to have sexual intercourse with his wives with a single bath
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: 3:30