Musannaf Ibn Abi Shaybah 1000 — A woman who becomes pure and then sees

Sayyiduna Ali (may Allah be pleased with him) says: If a woman, after becoming pure from menstruation, sees something like the water in which meat has been washed, or drops like a nosebleed, or less or more than that, she should clean it with water, perform wudu and pray. She should not take a bath, unless she sees fresh blood, in which case she should take a bath as well. This is a kind of disturbance (literally, a kick) from Satan in the womb.