Ruling on working in a shop that rents out wedding dresses
Question

                My cousin works in a shop that rents wedding and party dresses. She wants to know if this work is halal or haram. She says that there is no other job available now. Is she permitted then to stay in this job until she finds another? 

Most of these dresses expose the shoulders, chest and neck, but they all have an attachment that is similar to a jacket to cover those positions of body.

This shop rents those dresses for three types of brides.

- A bride who normally wears hejab. She rents the dress with the jacket, and their parties are usually mixed. 
- A bride who normally wears niqab. She rents the dress without the jacket, and their parties are usually in two halls; one for men and the other for women. 
- A bride who does not normally wear hejab. She rents the dress without the jacket, and their parties are usually mixed.
Praise be to Allah.With regard to clothing 
    that reveals ‘awrahs and shows a woman’s charms, selling and renting them is 
    something that is subject to further discussion, as follows: 
1-
It is permissible to sell 
    and rent them to people who we know or think most likely that they will use 
    them in permissible ways. 
2-
It is haraam to sell and 
    rent them to people who we know or think most likely that they will use them 
    in haraam ways, such as one who will wear them in mixed parties, because 
    that is helping in sin. It is known that it is not permissible for a woman 
    to uncover her neck and shoulders in front of non-mahram men, rather she is 
    obliged to conceal all of her body in front of them, even her face and hands 
    according to the more correct opinion. See the answer to question no.
    11774 and
    21536. 
3-
If it is not known whether 
    the purchaser or renter will use them in halaal ways or haraam, and there is 
    no circumstantial evidence to suggest that either of the two possibilities 
    is stronger, then the basic principle is that it is permissible to sell or 
    rent it to them, then if they use it in haraam ways, then they are the 
    sinners. 
Shaykh al-Islam Ibn 
    Taymiyah (may Allaah have mercy on him) said in Sharh al-‘Umdah 
    (4/386): All clothing that it is thought most likely that it will be used 
    for sinful purposes, it is not permissible to sell it or sew it for one who 
    will use it for sinful and wrongful purposes. End quote. 
It says in Fataawa 
    al-Lajnah al-Daa’imah (13/109): Everything that will be used in haraam 
    ways, or it is thought most likely that it will be used in such ways, it is 
    haraam to manufacture it, import it, sell it or distribute it among the 
    Muslims. That includes what many women do nowadays – may Allaah guide them – 
    of wearing thin, tight and short clothes, which may all be summed up as 
    showing their charms and adornments, and showing the shape and size of a 
    woman’s limbs in front of non-mahram men. End quote. 
Based on that we say: If 
    your cousin is able to follow what we have said then there is nothing wrong 
    with this work of hers, but if she is not able to do that, then she should 
    leave this job, seeking the pleasure of Allaah and so as to avoid sin. She 
    should realize that there are many ways of seeking halaal provision, and 
    that if a person fears Allaah, He will provide for him, and the one who 
    gives up something for the sake of Allaah, Allaah will compensate him with 
    something better than it. 
It is not permissible for 
    her to stay in this haraam job until she can find another, because there is 
    no necessity which makes it permissible to do something haraam. 
And Allaah knows best.