What is the jurisprudential ruling on recording the voice of one's brother's wife without her knowledge, with the intention of warding off her evil, and what must the wife do after the husband's sister caused her divorce as a result of revealing this recording?

You have committed grave errors by gossiping, spying, and prying into the affairs of your husband's brother's sisters and wife. You must offer sincere repentance and refrain from backbiting and tale-bearing. It is not permissible for you to abandon your husband's brother's wife; rather, you must maintain ties with her through greetings and good deeds, and avoid engaging with her or your husband's family in idle chatter and gossip. You should advise anyone who backbites or engages in tale-bearing in your presence, and treat everyone with kindness, patience, and overlook their shortcomings. You must inform your husband and his family that it is impermissible to sever ties with their brother and sisters, and that the minimum level of maintaining kinship ties is exchanging greetings. They should advise him and try to reunite the family through mutual consent and overlooking past mistakes.