Sahih Muslim 332
Sahih Muslim · Book 3: The Book of Menstruation · It is recommended for the woman who is performing ghusl following menses to apply a piece of cloth scented with musk to the site of the bleeding
'A'isha reported:
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى ، وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ كِلاَهُمَا عَنْ أَبِي الأَحْوَصِ ، عَنْ إِبْرَاهِيمَ بْنِ مُهَاجِرٍ ، عَنْ صَفِيَّةَ بِنْتِ شَيْبَةَ ، عَنْ عَائِشَةَ ، قَالَتْ دَخَلَتْ أَسْمَاءُ بِنْتُ شَكَلٍ عَلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَتْ يَا رَسُولَ اللَّهِ كَيْفَ تَغْتَسِلُ إِحْدَانَا إِذَا طَهُرَتْ مِنَ الْحَيْضِ وَسَاقَ الْحَدِيثَ وَلَمْ يَذْكُرْ فِيهِ غُسْلَ الْجَنَابَةِ .
Asma' b. Shakal came to the Messenger of Allah (ﷺ) and said: Messenger of Allah, how one amongst us should take a bath after the menstruation, and the rest of the hadith is the same and there is no mention of bathing because of sexual intercourse.