Sahih Muslim 789
صحيح مسلم#789Sahihقَالَ ابْنُ شِهَابٍ أَخْبَرَنِي سَعِيدُ بْنُ خَالِدِ بْنِ عَمْرِو بْنِ عُثْمَانَ، وَأَنَا أُحَدِّثُهُ، هَذَا الْحَدِيثَ . أَنَّهُ سَأَلَ عُرْوَةَ بْنَ الزُّبَيْرِ عَنِ الْوُضُوءِ، مِمَّا مَسَّتِ النَّارُ فَقَالَ عُرْوَةُ سَمِعْتُ عَائِشَةَ، زَوْجَ النَّبِيِّ صلى الله عليه وسلم تَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " تَوَضَّئُوا مِمَّا مَسَّتِ النَّارُ " .
Urwa reported on the authority of'A'isha, the wife of the Messenger of Allah (ﷺ), saying this:The Messenger of Allah (ﷺ) said. Perform ablution (after eating) anything touched by fire
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: 3:111