Sahih al-Bukhari 327
صحيح البخاري#327Sahihحَدَّثَنَا إِبْرَاهِيمُ بْنُ الْمُنْذِرِ، قَالَ حَدَّثَنَا مَعْنٌ، قَالَ حَدَّثَنِي ابْنُ أَبِي ذِئْبٍ، عَنِ ابْنِ شِهَابٍ، عَنْ عُرْوَةَ، وَعَنْ عَمْرَةَ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّ أُمَّ حَبِيبَةَ اسْتُحِيضَتْ سَبْعَ سِنِينَ، فَسَأَلَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنْ ذَلِكَ، فَأَمَرَهَا أَنْ تَغْتَسِلَ فَقَالَ " هَذَا عِرْقٌ ". فَكَانَتْ تَغْتَسِلُ لِكُلِّ صَلاَةٍ.
Narrated `Aisha:(the wife of the Prophet) Um Habiba got bleeding in between the periods for seven years. She asked Allah's Messenger (ﷺ) about it. He ordered her to take a bath (after the termination of actual periods) and added that it was (from) a blood vessel. So she used to take a bath for every prayer
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:32