Is it permissible to use forged documents to incriminate one's brother's wife, causing her dismissal from work, after she caused harm to the woman and threatened to ruin her marital relationship?

Protecting the honor and dignity of Muslims is an Islamic imperative. Islamic law prohibits hurting feelings and slandering honor, and it absolutely forbids spreading indecency and making false accusations, considering it a major sin that necessitates the Hadd (punishment) for slander. An sister informing her brother about his wife is dangerous if she has not verified it through lawful means, and she must now seek forgiveness from her and repent to Allah. She should not seek revenge by harming her; rather, she must repel evil with good, forgiveness, and reconciliation.