What is the ruling regarding a husband who swears by divorce that a certain person will enter Paradise, and repeats this despite knowing that swearing by divorce is not permissible in this matter, especially since he has previously sworn falsely twice before?

If a husband swears by divorce, believing himself to be truthful, his divorce does not occur. However, if he swears falsely or doubtfully, he breaks his oath, and repentance is incumbent upon him. According to the prevalent fatwa, the divorce occurs, while Ibn Taymiyyah holds that it does not occur. It is obligatory to avoid swearing by divorce, as it is among the oaths of the wicked.