Husband’s parents preventing the wife from visiting her own family
Question

                Do the in-laws have the right to not send their daughter-in-law to her parents so that she can spend her time with her parents & all & can relax for some time in her parent's home.
Praise be to Allah.What the wife is obliged to do is to obey her 
    husband; he is the one whom she is obliged to obey. If the husband agrees that she may visit her family, it does not matter if his parents do not 
    approve. 
But a woman should strive to please her 
    husband’s parents and treat them in a manner that is better, and not confront them. This will have a great effect on giving stability to her life 
    with her husband. 
You should understand that your husband’s 
    parents may make things difficult for you because they think that you have taken away the one who is most dear to them. So you should handle this 
    matter wisely and not be the cause of arguments or division between your husband and his parents. Rather you should try to help your husband obey 
    and honour his parents, and you will find the effects of that, in sha Allah, in your own children [i.e., they will honour you in turn]. 
You have to treat them kindly, because 
    kindness is never to be found in a thing but it beautifies it, and it is never lacking in a thing but it makes it ugly. If you see that they are 
    treating you badly, then remember the words of Allah (interpretation of the meaning): 
“Repel (the evil) with one which is better 
    (i.e. Allah orders the faithful believers to be patient at the time of anger, and to excuse those who treat them badly) then verily he, between 
    whom and you there was enmity, (will become) as though he was a close friend”
[Fussilat 41:34] 
For more information, please see al-Mughni, 
    7/225 
And Allah knows best.