أَنَّهَا كَانَتْ تَكُونُ حَائِضًا لاَ تُصَلِّي، وَهْىَ مُفْتَرِشَةٌ بِحِذَاءِ مَسْجِدِ رَسُولِ اللَّهِ صلى الله عليه وسلم وَهْوَ يُصَلِّي عَلَى خُمْرَتِهِ، إِذَا سَجَدَ أَصَابَنِي بَعْضُ ثَوْبِهِ.
Maymunah reported that when she was menstruating and not praying, she would lie stretched out alongside the place of prayer of the Messenger of Allah ﷺ while he prayed on his small mat. When he prostrated, part of his garment would touch …
also in Sahih al-Bukhari 379, Sahih al-Bukhari 518