Sunan Ibn Majah 477
سنن ابن ماجه#477Hasanحَدَّثَنَا مُحَمَّدُ بْنُ الْمُصَفَّى الْحِمْصِيُّ، حَدَّثَنَا بَقِيَّةُ، عَنِ الْوَضِينِ بْنِ عَطَاءٍ، عَنْ مَحْفُوظِ بْنِ عَلْقَمَةَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَائِذٍ الأَزْدِيِّ، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " الْعَيْنُ وِكَاءُ السَّهِ فَمَنْ نَامَ فَلْيَتَوَضَّأْ " .
It was narrated from 'Ali bin Abu Talib that:The Messenger of Allah said: "The eye is the leather strap (that ties up) the anus, so whoever falls asleep, let him perform ablution
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:
In-book reference: 1:211