"I entered upon 'Aishah with my mother and maternal aunt, and we asked her what the Prophet ﷺ used to do when one of (his wives) was menstruating. She said: He would tell us, when when of us menstruated, to wrap a wide Izar around herself then he would embrace her chest and breasts.
دَخَلْتُ عَلَى عَائِشَةَ مَعَ أُمِّي وَخَالَتِي فَسَأَلَتَاهَا كَيْفَ كَانَ رَسُولُ اللَّهِ ﷺ يَصْنَعُ إِذَا حَاضَتْ إِحْدَاكُنَّ قَالَتْ كَانَ يَأْمُرُنَا إِذَا حَاضَتْ إِحْدَانَا أَنْ تَتَّزِرَ بِإِزَارٍ وَاسِعٍ ثُمَّ يَلْتَزِمُ صَدْرَهَا وَثَدْيَيْهَا