Sahih Muslim 353
Sahih Muslim · Book 3: The Book of Menstruation · Performing wudu’ after eating something that has been touched by fire
'Urwa reported on the authority of'A'isha, the wife of the Messenger of Allah (ﷺ), saying this:
قَالَ 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 " .
The Messenger of Allah (ﷺ) said. Perform ablution (after eating) anything touched by fire.