عَنِ الْأَسْوَدِ عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا قَالَتْ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَأْمُرُ إِحْدَانَا إِذَا حَاضَتْ تَأْتَزِرُ ثُمَّ يُبَاشِرُهَا
It is narrated from Sayyida Aisha (may Allah be pleased with her), she says: When any of us would be menstruating, the Prophet (peace and blessings be upon him) would instruct her to tie a waist-wrapper, then he (peace and blessings be upon him) would join his body with her body.