Sunan Ibn Majah 589
سنن ابن ماجه#589Sahihحَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، عَنْ صَالِحِ بْنِ أَبِي الأَخْضَرِ، عَنِ الزُّهْرِيِّ، عَنْ أَنَسٍ، قَالَ وَضَعْتُ لِرَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ غُسْلاً فَاغْتَسَلَ مِنْ جَمِيعِ نِسَائِهِ فِي لَيْلَةٍ .
It was narrated that Anas said:"I put out water for the Messenger of Allah for a bath, and he had a bath after going to all of his wives in one night
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:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih Lighairihi
Zubair Ali ZaiDaif
In-book reference: 1:323