Sunan Ibn Majah 482
سنن ابن ماجه#482Sahihحَدَّثَنَا سُفْيَانُ بْنُ وَكِيعٍ، حَدَّثَنَا عَبْدُ السَّلاَمِ بْنُ حَرْبٍ، عَنْ إِسْحَاقَ بْنِ أَبِي فَرْوَةَ، عَنِ الزُّهْرِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ عَبْدٍ الْقَارِيِّ، عَنْ أَبِي أَيُّوبَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَقُولُ " مَنْ مَسَّ فَرْجَهُ فَلْيَتَوَضَّأْ " .
It was narrated that Abu Ayyub said:"I heard the Messenger of Allah say: 'Whoever touches his sexual organ, 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:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih Lighairihi
Zubair Ali ZaiHasan
In-book reference: 1:216