Sunan an-Nasa'i 107
سنن النسائي#107Sahihأَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنِي يَحْيَى بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا سُلَيْمَانُ التَّيْمِيُّ، قَالَ حَدَّثَنَا بَكْرُ بْنُ عَبْدِ اللَّهِ الْمُزَنِيُّ، عَنِ الْحَسَنِ، عَنِ ابْنِ الْمُغِيرَةِ بْنِ شُعْبَةَ، عَنِ الْمُغِيرَةِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم تَوَضَّأَ فَمَسَحَ نَاصِيَتَهُ وَعِمَامَتَهُ وَعَلَى الْخُفَّيْنِ . قَالَ بَكْرٌ وَقَدْ سَمِعْتُهُ مِنِ ابْنِ الْمُغِيرَةِ بْنِ شُعْبَةَ عَنْ أَبِيهِ .
It was narrated from Al-Mughirah that the Prophet (ﷺ) performed Wudu', and he wiped the forehead, the 'Imamah, and over the Khuff. (Another chain)
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: 1:107