Sunan Abi Dawud 93
سنن أبي داود#93Sahihحَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ حَنْبَلٍ، حَدَّثَنَا هُشَيْمٌ، أَخْبَرَنَا يَزِيدُ بْنُ أَبِي زِيَادٍ، عَنْ سَالِمِ بْنِ أَبِي الْجَعْدِ، عَنْ جَابِرٍ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَغْتَسِلُ بِالصَّاعِ وَيَتَوَضَّأُ بِالْمُدِّ .
Narrated Jabir ibn Abdullah: The Prophet (ﷺ) used to take a bath with a sa' (of water) and perform ablution with a mudd (of water)
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 Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih
In-book reference: 1:93