Hadithcore
Sahih al-Bukhari, 517
sahih

Narrated Maimuna bint Al-Harith:

My bed was beside the praying place (Musalla) of the Prophet (ﷺ) and sometimes his garment fell on me while I used to lie in my bed.

حَدَّثَنَا عَمْرُو بْنُ زُرَارَةَ، قَالَ أَخْبَرَنَا هُشَيْمٌ، عَنِ الشَّيْبَانِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ شَدَّادِ بْنِ الْهَادِ، قَالَ أَخْبَرَتْنِي خَالَتِي، مَيْمُونَةُ بِنْتُ الْحَارِثِ قَالَتْ كَانَ فِرَاشِي حِيَالَ مُصَلَّى النَّبِيِّ صلى الله عليه وسلم فَرُبَّمَا وَقَعَ ثَوْبُهُ عَلَىَّ وَأَنَا عَلَى فِرَاشِي‏.‏

References2 variants
In-Book Reference
Book 8, Hadith 164
USC-MSA web (English) reference
Vol. 1, Book 9, Hadith 496 (deprecated numbering scheme)
Sharh · explanationclick to expand
Among the Jews, when a woman menstruated, they would expel her from the house; they would not eat with her, or drink with her or be with her in the same room. In Islamic teachings, however, the menstruating woman is not blamed for something that Allah has decreed for her; her entire body is pure (tahir) apart from the place where the hurt (i.e., menses) is. This hadith is a brief part of a longer hadith in which the Mother of the Believers Maymunah (may Allah be pleased with her) stated that the Prophet (blessings and peace of Allah be upon him) used to pray in her apartment, and the place where he prayed was next to her bed on which she would be sleeping, and when she was menstruating – as is mentioned in a report in al-Sahihayn – sometimes the garment of the Prophet (blessings and peace of Allah be upon him) would touch her whilst he was praying. This indicates that the menstruating woman is not impure (najis) and it indicates that her garment that she wears whilst menstruating is pure (tahir). It also indicates that the menstruating woman may be close to one who is praying, and that does not affect his prayer or interrupt it. This is an example of the ways in which Islam makes things easier for women in all circumstances, and honours women, especially at the time of menses, whereas the Jews used to regard the menstruating woman as impure, so no one would go near her or eat with her..