What should the wife do with her mother and husband if the husband committed adultery with the mother several times without the wife's knowledge?

Accusing someone of fornication or adultery without lawful proof is impermissible; otherwise, the accuser is a slanderer deserving of eighty lashes. If fornication or adultery is proven, the punishment for the adulteress is stoning to death, and likewise for the married adulterer. The unmarried adulterer receives one hundred lashes. Incest is a greater sin and, according to some scholars, necessitates execution in all cases. As for a wife who has confirmed her husband's adultery with her mother, she must advise them to repent, separate her husband from her mother, and if he does not repent, she must seek divorce. She must weigh the consequences of her decision.