Musannaf Ibn Abi Shaybah 1356 — What a woman with irregular bleeding

Sayyidah Umm Salamah (may Allah be pleased with her) said that a woman said to the Prophet (peace and blessings be upon him): "I am a woman with istihadah and I do not become pure; should I leave the prayer?" The Prophet (peace and blessings be upon him) said: "No, but leave the prayer for the days and nights of your menstruation, then take a ritual bath, bind a cloth to hold back the blood, and pray." However, Ibn Numayr's narration says that Sayyidah Umm Salamah asked the Prophet (peace and blessings be upon him) for a ruling about a woman whose blood keeps flowing, and he said: "She waits for the number of days and nights in which she used to menstruate, or their equivalent in the month." Then he mentioned the like of Abu Usamah's hadith.