Sahih MuslimBook 3: The Book of Menstruation (Kitab Al-Haid) › Chapter 12: THE DESIRABILITY OF USING MUSK AT THE SPOT OF BLOOD WHILE BATHING AFTER MENSTRUATION
This hadith is narrated by 'Ubaidullah b. Mu'adh with the same chain of transmitters (but for the words) that he (the Holy Prophet) said: Cleanse yourself with it, and he covered (his face on account of shyness).