Rabi'ah said:Umm Habibah daughter of Jahsh had a prolonged flow of blood. The Prophet (ﷺ) commander her to refrain (from prayer) during her menstrual period; then she should wash and pray. If she sees anything (which renders ablution void) she should perform ablution and pray. Abu Dawud said: This is the view held by Malik b. Anas

English translation · Sunan Abu Dawud