حَدَّثَنَا عَمْرُو بْنُ عَوْنٍ، حَدَّثَنَا خَالِدٌ، عَنِ الشَّيْبَانِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ شَدَّادٍ، حَدَّثَتْنِي مَيْمُونَةُ بِنْتُ الْحَارِثِ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلميُصَلِّي وَأَنَا حِذَاءَهُ وَأَنَا حَائِضٌ وَرُبَّمَا أَصَابَنِي ثَوْبُهُ إِذَا سَجَدَ وَكَانَ يُصَلِّي عَلَى الْخُمْرَةِ ‏.‏

Maimunah bint al-Harith reported

The Messenger of Allah (ﷺ) used to pray while I was opposite to him, and I was menstruating, and sometimes his garment would touch me when he prostrated. And he used to pray on a khumrah (small mat).