Advice for the one whose father married a woman who practices sorcery

Question:
Honorable Shaykh, a questioner says: My father married a woman from outside this country, but unfortunately, she always claims to be ill, and there is no cure for her except in her own country with some doctors there. However, after my father returned, she changed her behavior toward us, and we discovered that she uses sorcery and witchcraft to incite hatred. My father, when we advise him not to allow her to travel, quarrels with us, curses us, and accuses us of undutifulness to parents. What should we do, and what is your guidance for us?

Answer:
Allah knows best. This is a plea from you, but if you are sincere in this, then you have no choice but to advise your father. You must only offer sincere advice. If he complies and accepts the advice and leaves her, praise be to Allah. Otherwise, you have no power to do more than that, unless you have proof that you possess—proof in the form of the testimony of two witnesses or a confession from her that she is a sorceress. In that case, you can take the matter to the court, and it will look into it and do what is required, because it is not permissible to accept a sorcerer’s confession or to leave him alone; rather, he must be killed and is not asked to repent if it is established that she is a sorceress. Yes.