It was narrated from 'Aishah that Umm Habibah asked the Messenger of Allah (ﷺ) about bleeding. 'Aishah said:
"I saw her wash tub filled with blood. The Messenger of Allah (ﷺ) said to her: 'Stop (praying) for as long as your period prevents you, then perform Ghusl.'" (ES)
English reference (ES): Vol. 1, Book 1, Hadith 207 (ES)
Arabic reference (ES): Book 1, Hadith 208 (ES)