Sunan an-Nasa'i 120
سنن النسائي#120Hasanأَخْبَرَنَا عَبْدُ الرَّحْمَنِ بْنُ إِبْرَاهِيمَ، دُحَيْمٌ وَسُلَيْمَانُ بْنُ دَاوُدَ - وَاللَّفْظُ لَهُ - عَنِ ابْنِ نَافِعٍ، عَنْ دَاوُدَ بْنِ قَيْسٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ أُسَامَةَ بْنِ زَيْدٍ، قَالَ دَخَلَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَبِلاَلٌ الأَسْوَاقَ فَذَهَبَ لِحَاجَتِهِ ثُمَّ خَرَجَ قَالَ أُسَامَةُ فَسَأَلْتُ بِلاَلاً مَا صَنَعَ فَقَالَ بِلاَلٌ ذَهَبَ النَّبِيُّ صلى الله عليه وسلم لِحَاجَتِهِ ثُمَّ تَوَضَّأَ فَغَسَلَ وَجْهَهُ وَيَدَيْهِ وَمَسَحَ بِرَأْسِهِ وَمَسَحَ عَلَى الْخُفَّيْنِ ثُمَّ صَلَّى .
It was narrated that Usamah bin Zaid said:"The Messenger of Allah (ﷺ) and Bilal entered Al-Aswaf [1] and he went to relieve himself and then came out." Usamah said: "I asked Bilal: 'What did he do?' Bilal said: 'The Prophet (ﷺ) went to relieve himself, then he performed Wudu', so he washed his hands and face, and wiped his head and he wiped over his Khuffs, then prayed
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: 1:120