Sahih al-Bukhari 351
Sahih al-Bukhari · Book 8: Prayers (Salat) · It is obligatory to wear clothes while offering As-Salat (the prayers)
Narrated Um `Atiya:
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ ، قَالَ حَدَّثَنَا يَزِيدُ بْنُ إِبْرَاهِيمَ ، عَنْ مُحَمَّدٍ ، عَنْ أُمِّ عَطِيَّةَ ، قَالَتْ أُمِرْنَا أَنْ نُخْرِجَ، الْحُيَّضَ يَوْمَ الْعِيدَيْنِ وَذَوَاتِ الْخُدُورِ، فَيَشْهَدْنَ جَمَاعَةَ الْمُسْلِمِينَ وَدَعْوَتَهُمْ، وَيَعْتَزِلُ الْحُيَّضُ عَنْ مُصَلاَّهُنَّ. قَالَتِ امْرَأَةٌ يَا رَسُولَ اللَّهِ، إِحْدَانَا لَيْسَ لَهَا جِلْبَابٌ. قَالَ " لِتُلْبِسْهَا صَاحِبَتُهَا مِنْ جِلْبَابِهَا " . وَقَالَ عَبْدُ اللَّهِ بْنُ رَجَاءٍ حَدَّثَنَا عِمْرَانُ ، حَدَّثَنَا مُحَمَّدُ بْنُ سِيرِينَ ، حَدَّثَتْنَا أُمُّ عَطِيَّةَ ، سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم بِهَذَا .
We were ordered to bring out our menstruating women and veiled women in the religious gatherings and invocation of Muslims on the two `Id festivals. These menstruating women were to keep away from their Musalla. A woman asked, "O Allah's Messenger (ﷺ) ' What about one who does not have a veil?" He said, "Let her share the veil of her companion."