سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 385
The Book of Menstruation and Istihadah
Menstruating Woman Spreading Out A Mat In The Masjid
أَخْبَرَنَا مُحَمَّدُ بْنُ مَنْصُورٍ، عَنْ سُفْيَانَ، عَنْ مَنْبُوذٍ، عَنْ أُمِّهِ، أَنَّ مَيْمُونَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَضَعُ رَأْسَهُ فِي حِجْرِ إِحْدَانَا فَيَتْلُو الْقُرْآنَ وَهِيَ حَائِضٌ وَتَقُومُ إِحْدَانَا بِخُمْرَتِهِ إِلَى الْمَسْجِدِ فَتَبْسُطُهَا وَهِيَ حَائِضٌ .
Maimunah said: "The Messenger of Allah (ﷺ) used to lay his head in the lap of one of us and recite Qur'an while she was menstruating, and one of us would take the mat to the Masjid and spread it out when she was menstruating."
Sunan an-Nasa'i, 385Sahih (Darussalam)