أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَمْرِو بْنِ شُرَحْبِيلَ، عَنْ عَائِشَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَأْمُرُ إِحْدَانَا إِذَا كَانَتْ حَائِضًا أَنْ تَشُدَّ إِزَارَهَا ثُمَّ يُبَاشِرُهَا ‏.‏

It was narrated that 'Aishah said: "The Messenger of Allah (PBUH) would tell one of us, if she was menstruating, to tie her Izar (waist wrap) tightly then he would fondle her." Translation Not Available

Book Ref: Sunan An Nisai Book 3 Hadith 373
Web Ref:  Sunan An Nisai Vol 1 Book 3 Hadith 373