(Imām Bukhārī narrates): Yahya narrated to us, he said: Ibn Uyainah narrated to us, from Mansur bin Safiyyah, from his mother, from Hazrat Aisha (may Allāh be pleased with her), she says that

a woman asked the Prophet ﷺ about the ghusl for menstruation; he instructed her how to bathe. He said: Take a piece of musk and purify yourself with it. She said: How should I purify myself with it? He said: Purify yourself with it. She said: How? He said: Subhan Allah! Purify yourself with it. Hazrat Aisha says: I pulled her toward me and said: Clean the trace of the blood with this piece of musk (by rubbing).