The Book of Purification and its Sunnah
1/65. Chapter:
Ablution after (eating) that which has been changed by fire (i.e., cooked upon fire)
Sunan Ibn Majah
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 said: 'Perform ablution after (eating) that which has been changed by fire.'"
Reference : Sunan Ibn Majah 486In-book reference : Book 1, Hadith 220English translation : Vol. 1, Book 1, Hadith 486