Divorce outside the waiting period occurs in two cases

The Shaykh : Divorce outside the waiting period occurs if he divorces her during menstruation, or if he divorces her during a period of purity in which he had intercourse with her. This is divorce outside the waiting period, and it is forbidden; it is forbidden. So if a woman is menstruating and her husband divorces her, we say: This is a forbidden divorce, and you must take her back. Why? Answer, everyone.