An exception to our statement, “during a period of purity in which he has not had intercourse with her,” is when she is pregnant: if he has intercourse with her and then divorces her afterward, the divorce is Sunnah-compliant, not innovated. For this reason, it would have been preferable had the author, may Allah have mercy on him, added a fifth condition and said: “during a period of purity in which he has not had intercourse with her and her pregnancy has not become apparent.” For once her pregnancy has become apparent, it is permissible to divorce her even if he has had intercourse with her, because he is divorcing her at the commencement of her waiting period; the waiting period of a pregnant woman ends with delivery.
Thus, the conditions are five: first, he divorces her only once, during a period of purity in which he has not had intercourse with her and in which her pregnancy has not become apparent, and then leaves her until her waiting period expires. This is the Sunnah. If he divorces her twice or more, it is innovated; or if he divorces her during menstruation or postnatal bleeding, it is innovated; or during a period of purity in which he had intercourse with her and her pregnancy has not become apparent, it is innovated; or if he follows it with another pronouncement of divorce, it is innovated.
Thus, three pronouncements of divorce are forbidden, …
His statement, “Thus, three pronouncements of divorce are forbidden,” means [that they are forbidden] during a period of purity in which he has not had intercourse with her. A man divorced his wife with three pronouncements during the time of the Prophet, peace and blessings be upon him, so the Messenger, peace and blessings be upon him, stood and said: “Is the Book of Allah being treated as a plaything while I am among you?!” A man then stood and said, “O Messenger of Allah, shall I not kill him?!” (1) This indicates that it is forbidden. It is also a form of mockery of the verses of Allah, for Allah—Exalted is He—has provided people with latitude in the matter of divorce. When a man pronounces divorce three times, it is as though he has hastened that in which Allah has provided latitude, thereby opposing Allah’s ruling. Moreover, Umar ibn al-Khattab, may Allah be pleased with him, held them to these three pronouncements as a punishment for them (2),