'Aishah, wife of Prophet ﷺ, said:

Umm Habibah, daughter of Jahsh, sister-in-law of Messenger of Allah ﷺ and wife of 'Abd al-Rahman b. 'Awf, had a flow of blood for seven years. She asked the Messenger of Allah ﷺ about it. The Messenger of Allah ﷺ said: This is not menstruation but only vein; so you should take a bath and pray. 'Aishah said: She used to take bath in a wash-tub in the apartment of her sister Zainab daughter of Jahsh ; the redness of (her) blood dominated the water.

حَدَّثَنَا ابْنُ أَبِي عَقِيلٍ، وَمُحَمَّدُ بْنُ سَلَمَةَ الْمُرَادِيُّ، قَالاَ حَدَّثَنَا ابْنُ وَهْبٍ، عَنْ عَمْرِو بْنِ الْحَارِثِ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ بْنِ الزُّبَيْرِ، وَعَمْرَةَ بِنْتِ عَبْدِ الرَّحْمَنِ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ ﷺ أَنَّ أُمَّ حَبِيبَةَ بِنْتَ جَحْشٍ خَتَنَةَ رَسُولِ اللَّهِ ﷺ وَتَحْتَ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ اسْتُحِيضَتْ سَبْعَ سِنِينَ فَاسْتَفْتَتْ رَسُولَ اللَّهِ ﷺ فِي ذَلِكَ فَقَالَ رَسُولُ اللَّهِ ﷺ
" إِنَّ هَذِهِ لَيْسَتْ بِالْحَيْضَةِ وَلَكِنْ هَذَا عِرْقٌ فَاغْتَسِلِي وَصَلِّي " . قَالَتْ عَائِشَةُ فَكَانَتْ تَغْتَسِلُ فِي مِرْكَنٍ فِي حُجْرَةِ أُخْتِهَا زَيْنَبَ بِنْتِ جَحْشٍ حَتَّى تَعْلُوَ حُمْرَةُ الدَّمِ الْمَاءَ .