His wife’s family stipulated that he has to become rich before they will send his wife and children back to him
Question

                I am suffering from many problems with my wife’s family. I married their daughter thinking that they were religiously committed, then I found out that they adhere to customs and traditions (rather than religion). They took my wife from me by force and I am have no power or status in this world, there is no power and no strength except with Allaah. She gave birth in their house and now they do not want to send my daughter or my wife back to me unless I become very rich. Please note that they have given my wife the choice between going with me and they will be angry with her, or staying with them until I become rich. My wife knows that I am in the right and they are in the wrong, but they are following their ways. What should I do according to Islam?.
Praise be to Allah.Firstly: 
The wife has 
    no right to go out of her husband’s house without his permission, and her 
    family have no right to help her or encourage her to do that, because her 
    leaving and not returning constitute disobedience towards her husband and 
    rebellion against him which makes her guilty of nashooz (wilful defiance). 
Their taking 
    their daughter away is another act of wrongdoing, and their stipulating that 
    you must become very rich before they will return your wife to you is 
    wrongdoing upon wrongdoing. They have no right to do any such thing. When 
    they accepted the marriage and the marriage contract was done and the 
    husband paid the mahr, they were obliged to hand the wife over to the 
    husband, so how about when she was with him and had borne him a child! 
You do not 
    say anything about your financial situation, and whether you have enough to 
    spend on your wife or not. Are you hard up or do you have enough to spend on 
    yourself and your family?  
The majority 
    of scholars are of the view that the husband’s inability to spend on his 
    wife is sufficient grounds for separating them, if the wife requests that. 
    But if she accepts it and does not ask for separation, then no one has the 
    right to separate them. See al-Mawsoo’ah al-Fiqhiyyah (5/254 and 
    29/58). 
Secondly: 
You should 
    take the following steps to get your wife back: 

    1-Reconcile between yourself and 
    Allaah, may He be exalted, so that you can reconcile between yourself and 
    other people.

    2-Ask Allaah to divert harm from 
    you, and to suffice you against the evil of all evildoers.

    3-Try to reach an understanding 
    with your wife’s family and find out what their attitude really is. They may 
    have other reasons apart from the issue of wealth.

    4-Appoint religiously committed 
    and righteous people to intervene and advise them, and explain to them the 
    seriousness of their wrongdoing and aggression.

    5-Refer the matter to the courts, 
    to have your wife and daughter returned to you.
We ask 
    Allaah to make things easy for you and to help you to do that which He loves 
    and which pleases Him. 
And Allaah 
    knows best.