Sunan an-Nasa'i 176
سنن النسائي#176Sahihأَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، وَمُحَمَّدُ بْنُ بَشَّارٍ، قَالاَ أَنْبَأَنَا ابْنُ أَبِي عَدِيٍّ، عَنْ شُعْبَةَ، عَنْ عَمْرِو بْنِ دِينَارٍ، عَنْ يَحْيَى بْنِ جَعْدَةَ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، - قَالَ مُحَمَّدٌ الْقَارِيُّ - عَنْ أَبِي أَيُّوبَ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " تَوَضَّئُوا مِمَّا غَيَّرَتِ النَّارُ " .
It was narrated that Abu Ayyub said:"The Messenger of Allah (ﷺ) said: 'Perform Wudu' from that which has been altered 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:
Abu GhuddahSahih Isnaad
Al-AlbaniSahih Isnaad
Zubair Ali ZaiSahih
In-book reference: 1:177