´It was narrated from 'Aishah:` "A woman asked the Prophet (ﷺ): 'O Messenger of Allah, how should I perform Ghusl when I become pure?' He said: 'Take a piece of cotton wool scented with musk and clean yourself with it.' She said: 'How should I clean myself with it?' He said: 'Clean yourself with it.' She said: "How should I clean myself with it?' The Messenger of Allah (ﷺ) said: 'Subhan Allah!' and turned away from her." 'Aishah understood what the Messenger of Allah (ﷺ) meant, and said: "So I pulled her toward me and told her what the Messenger of Allah (ﷺ) meant."
Hadith Referenceسنن نسائي / كتاب الغسل والتيمم / 427