Intercourse with the wife after the cessation of menstruation and before the ritual bath

Question:
He says: Honorable Shaykh, may Allah grant you success, what is the ruling on one who has intercourse with his wife after the blood of menstruation has stopped, but before she has performed the ritual bath?

Answer:
Allah (Exalted and Majestic is He) has permitted intercourse on two conditions: “until they purify themselves,” meaning the blood stops. So if they purify themselves, meaning they perform the ritual bath, then the one who had intercourse with her before the ritual bath has committed a sin; he has committed a sin by doing so, but he does not owe an expiation. Yes.