Narrated Zaynab daughter of Abu Salamah: Abu Salamah said: Zaynab daughter of Abu Salamah reported to me that a woman had a copious flow of blood. She was the wife of Abdur Rahman ibn Awf. The Messenger of Allah ﷺ commanded her to take a bath at the time of every prayer, and then to pray. He reported to me that Umm Bakr told him that Aishah said: The Messenger of Allah ﷺ said about a woman who was doubtful of her menstruation after purification that it was a vein or veins. Abu Dawud said: The two commands (of which the Prophet gave option) were as follows in the version reported by Ibn Aqil: He said: If you are strong enough, then take a bath for every prayer; otherwise combine the (two prayers), as al-Qasim reported in his version. This statement was also narrated by Saeed bin Jubair from Ali and Ibn Abbas.