The Book of Menstruation (Kitab Al-Haid)
Muslim :: Book 3 : Hadith 578
'A'isha reported: When anyone amongst us was menstruating the Messenger of Allah (may peace be upon him) asked her to tie waist-wrapper daring the time when the menstrual blood profusely flowed and then embraced her; and she ('A'isha) observed: And who amongst you can have control over his desires as the Messenger of Allah (may peace be upon him) had over his desires.