al-Hythm bin Hameed al-Ghsany الهيثم بن حميد الغساني مولاهم أبو أحمد · The Book of Purification

"Umm Habibah bint Jahsh- the wife of 'Abdur-Rahman bin 'Awf and the sister of Zainab bint Jahsh - suffered Istihadah (non-mentrual vaginal bleeding)." She said: "She consulted the Messenger of Allah (ﷺ) and the Messenger of Allah (ﷺ) said to her: 'That is not menstruation, rather that is a vein. When you period goes, perform Ghusl and pray, and when it comes, stop praying (for that period).'" 'Aishah said: "She used to perform Ghusl for every prayer and pray. Sometimes…