Ablution after (eating) that which has been changed by fire (i.e., cooked upon fire)
حَدَّثَنَا حَرْمَلَةُ بْنُ يَحْيَى، حَدَّثَنَا ابْنُ وَهْبٍ، أَنْبَأَنَا يُونُسُ بْنُ يَزِيدَ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " تَوَضَّئُوا مِمَّا مَسَّتِ النَّارُ " .
It was narrated that 'Aishah said: "The Messenger of Allah (ﷺ) said: 'Perform ablution after (eating) that which has been changed by fire.'"