What is the ruling regarding a wife who disclosed a secret to her family after her husband swore an oath of divorce or likened her to his sister or mother if she disclosed the secret, bearing in mind that the oath was sworn during the engagement period and they got married and had children thereafter?

If the husband doubts what he swore by, then his oath is void and has no consequences. Similarly, divorce before marriage is null and void, even if it is conditional. As for his statement: "You will become like my sister," it is a form of promise, and a promise is not legally binding. Therefore, the marital bond between the spouses remains intact, and it is advised to avoid uttering words of divorce.