The Book of Purification
1/122. Chapter:
Wudu' From (Eating) That Which Has Been Altered By Fire
Sunan an-Nasai
أَخْبَرَنَا الرَّبِيعُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا إِسْحَاقُ بْنُ بَكْرٍ، - وَهُوَ ابْنُ مُضَرَ - قَالَ حَدَّثَنِي أَبِي، عَنْ جَعْفَرِ بْنِ رَبِيعَةَ، عَنْ بَكْرِ بْنِ سَوَادَةَ، عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ، عَنْ عُمَرَ بْنِ عَبْدِ الْعَزِيزِ، عَنْ عَبْدِ اللَّهِ بْنِ إِبْرَاهِيمَ بْنِ قَارِظٍ، قَالَ رَأَيْتُ أَبَا هُرَيْرَةَ يَتَوَضَّأُ عَلَى ظَهْرِ الْمَسْجِدِ فَقَالَ أَكَلْتُ أَثْوَارَ أَقِطٍ فَتَوَضَّأْتُ مِنْهَا إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَأْمُرُ بِالْوُضُوءِ مِمَّا مَسَّتِ النَّارُ .
It was narrated that 'Abdullah bin Ibrahim bin Qariz said: "I saw Abu Hurairah performing Wudu' on the roof of the Masjid ans he said: 'I ate some tough cheese, so I performed Wudu' because of that. I heard the Messenger of Allah (ﷺ) commanding us to do Wudu' from that which has been touched by fire.'"
Reference : Sunan an-Nasa'i 173In-book reference : Book 1, Hadith 174English translation : Vol. 1, Book 1, Hadith 173