Sunan Abi Dawud 299
سنن أبي داود#299SahihAishah said about the woman who has a prolonged flow of blood:She should take bath, i.e. only once; then she should perform ablution until he next menstrual period
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 1:299