Her family took her away without her husband’s permission
Question

                I have a brother who has been married for several years, and he has a son and a daughter. He often has arguments with his wife, then they make up. The most recent incident was when she started cursing her parents-in-law, then she went even further and hit her husband. Then she told her family, and they came and took her away without her husband’s permission. There is a lot of immorality and lack of religious commitment, the extent of which Allah only knows. We have tried to advise them on many occasions but without success.

 I hope that you can help us and tell us to which department we may refer this matter, so that we can put an end to it.
Praise be to Allah.
    Firstly: 

    It is not permissible for a woman to go out of her husband’s 
    house without permission, rather many of the scholars regarded this as 
    nushooz (defiance) and going against the husband, if there is no excuse 
    for doing that, such as if her husband is harming her in a manner that she 
    cannot ward off and so on. 

    Moreover, if the wife is withholding herself from her 
    husband, he is no longer obliged to spend on her because of her defiance, as 
    the fuqaha (jurists) have stated. See al-Mughni, 8/182. 

    Secondly: 

    What your brother should do is to handle the situation wisely 
    and carefully in order to bring his wife back home. He should remind her of 
    Allah, and remind her family of Him; if he cannot do that himself, then he 
    should enlist the help of some relatives who have knowledge, experience and 
    wisdom, and get them involved so that they can solve the issue. 

    He should exercise deliberation and not be hasty in taking 
    decisions, for “Deliberation is from Allah and haste is from the Shaytan,” 
    as the Prophet  (peace and blessings of Allah be upon him) said. 
    (Classed as saheeh by al-Albani in al-Silsilah al-Saheehah, 1895). 

    A man may make a decision at the time of anger, then regret 
    it, but at a time when regret will be to no avail. 

    He should also adopt an attitude of patience, put up with his 
    wife and try to put an end to the disputes between them that have gone on 
    for years and years. Let him start a new life with her, forgetting the past 
    and its arguments. 

    Thirdly: 

    No one is perfect, so he should accept her good points and 
    overlook her bad points, and try to change her in a wise and calm manner. 
    The Prophet  (peace and blessings of Allah be upon him) said: “No 
    believing man should hate a believing woman, for if he dislikes one of her 
    characteristics, he will be pleased with another.” 

    Al-Nawawi said: 

    This means that he should not hate her, because if he sees in 
    her a characteristic that he dislikes, he will find another that is 
    pleasing; she may be bad-tempered but at the same time 
    religiously-committed, or beautiful, or chaste, or kind to him, and so on. 
    End quote. 

    This is how all people are; they have good qualities and bad 
    qualities. The wise man is the one who strikes the right balance between 
    good and bad, accepting the good things and overlooking the bad, whilst also 
    trying to correct them. 

    Fourthly: 

    If the husband does all that but the woman still does not 
    change, then he may refer to the shar’i courts to resolve this dispute. 

    And Allah is the One Whom we ask to set the affairs of all the Muslims straight. 

    And Allah knows best.