The ruling on the blood stopping for part of the time during the period of menstruation

Question:
May Allah reward you. Umm Ahmad from the Prophet’s City says in her question: Honorable Shaykh, when menstruation comes to a woman, it continues with her for three consecutive days, and on the fourth and fifth days, the flow of blood is intermittent, such that this woman is in a state of purity for two or three obligatory prayers, and then the blood returns, and it is little, and at the end of the fifth day she sees yellowish discharge. Is the stopping of the blood before the fifth day considered purity? And is the prayer obligatory?

Answer:
It is not considered purity. One must see complete cleanliness, such that nothing comes out with her, no yellowish discharge, no blood, even if it is like a thin smear, based on the statement of Aisha (may Allah be pleased with her) to the women: “Do not hasten until you see the white stream,” which is a substance that comes out at the end of menstruation, which women know, a white substance, or that she sees complete cleanliness, in that if she placed a cotton pad or a handkerchief on her private part and it was not affected and nothing appeared on it, this is complete cleanliness. As for what comes before that of yellowish discharge or drops of blood or otherwise on the days of the custom, then it is all menstruation; she does not fast or pray in it. Yes.