Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bukhari:351Mūsá b. Ismāʿīl > Yazīd b. Ibrāhīm > Muḥammad > Um ʿAṭiyyah > Umirnā

We were ordered to bring out our menstruating women and veiled women in the religious gatherings and invocation of Muslims on the two ʿId festivals. These menstruating women were to keep away from their Musalla. A woman asked, "O Messenger of Allah ﷺ ' What about one who does not have a veil?" He said, "Let her share the veil of her companion."  

البخاري:٣٥١حَدَّثَنَا 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 ﷺ بِهَذَا