Sahih Muslim 847 a
'Aisha reported:
The people came for Jumu'a prayer from their houses in the neighbouring villages dressed in woollen garments on which dust was settled and this emitted a foul smell. A person among them (those who were dressed so) came to the Messenger of Allah (ﷺ) while he was in my house. The Messenger of Allah (may peace he upon him) said to him: Were you to cleanse yourselves on this day.
حَدَّثَنِي هَارُونُ بْنُ سَعِيدٍ الأَيْلِيُّ، وَأَحْمَدُ بْنُ عِيسَى، قَالاَ حَدَّثَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي عَمْرٌو، عَنْ عُبَيْدِ اللَّهِ بْنِ أَبِي جَعْفَرٍ، أَنَّ مُحَمَّدَ بْنَ جَعْفَرٍ، حَدَّثَهُ عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، عَنْ عَائِشَةَ، أَنَّهَا قَالَتْ كَانَ النَّاسُ يَنْتَابُونَ الْجُمُعَةَ مِنْ مَنَازِلِهِمْ مِنَ الْعَوَالِي فَيَأْتُونَ فِي الْعَبَاءِ وَيُصِيبُهُمُ الْغُبَارُ فَتَخْرُجُ مِنْهُمُ الرِّيحُ فَأَتَى رَسُولَ اللَّهِ صلى الله عليه وسلم إِنْسَانٌ مِنْهُمْ وَهُوَ عِنْدِي فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏
"‏ لَوْ أَنَّكُمْ تَطَهَّرْتُمْ لِيَوْمِكُمْ هَذَا ‏"‏ ‏.‏