Sahih al-Bukhari 902
صحيح البخاري#902Sahihحَدَّثَنَا أَحْمَدُ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ وَهْبٍ، قَالَ أَخْبَرَنِي عَمْرُو بْنُ الْحَارِثِ، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي جَعْفَرٍ، أَنَّ مُحَمَّدَ بْنَ جَعْفَرِ بْنِ الزُّبَيْرِ، حَدَّثَهُ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم قَالَتْ كَانَ النَّاسُ يَنْتَابُونَ يَوْمَ الْجُمُعَةِ مِنْ مَنَازِلِهِمْ وَالْعَوَالِي، فَيَأْتُونَ فِي الْغُبَارِ، يُصِيبُهُمُ الْغُبَارُ وَالْعَرَقُ، فَيَخْرُجُ مِنْهُمُ الْعَرَقُ، فَأَتَى رَسُولَ اللَّهِ صلى الله عليه وسلم إِنْسَانٌ مِنْهُمْ وَهْوَ عِنْدِي، فَقَالَ النَّبِيُّ صلى الله عليه وسلم " لَوْ أَنَّكُمْ تَطَهَّرْتُمْ لِيَوْمِكُمْ هَذَا ".
Narrated Aisha:(the wife of the Prophet) The people used to come from their abodes and from Al-`Awali (i.e. outskirts of Medina up to a distance of four miles or more from Medina). They used to pass through dust and used to be drenched with sweat and covered with dust; so sweat used to trickle from them. One of them came to Allah's Messenger (ﷺ) who was in my house. The Prophet (ﷺ) said to him, "I wish that you keep yourself clean on this day of yours (i.e. take a bath)
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:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 11:26