Can the wife of a prisoner wear provocative clothing for him when visiting him?
Question

                In some Muslim countries those who are religiously committed and adhere to the Sunnah of the Messenger of Allaah (peace and blessings of Allaah be upon him) are detained and imprisoned. 

The wives of these prisoners visit their husbands and the visits occur in a place where they are allowed to sit with them. Of course these sisters wear niqaab and they put something like a tent over their heads so that their husbands can see them. But some of the sisters wear  revealing blouses so that their husbands can enjoy looking at them, because they have been in prison for 6 years or more. Is it permissible for a sister to do that, knowing that no one else can see her except her husband? As I said, they do that to reduce the pain suffered by their husbands.
Praise be to Allah.
    A woman may adorn herself for her husband in various ways and 
    uncover her charms before him at any time, because he has the right to enjoy 
    intimacy with her. 

    With regard to what you have mentioned about doing that 
    inside the prison, there is nothing wrong with that, subject to two 
    conditions: 

    1 – That no stranger (non-mahram) can see the woman, either 
    directly or through surveillance equipment. 

    2 – That this does not have a negative effect on the husband, 
    such as provoking his desires and inflaming his emotions, or causing him to 
    compromise his religious commitment and give up his adherence to the truth 
    that he is following, because he wants to get out and go to his wife and 
    children. Allaah has warned us that our wives and children may be a source 
    of fitnah (temptation) who may prevent a man from doing that which Allaah 
    has enjoined upon him. Allaah says (interpretation of the meaning): 

    “Say: If your fathers, your sons, your brothers, your 
    wives, your kindred, the wealth that you have gained, the commerce in which 
    you fear a decline, and the dwellings in which you delight are dearer to you 
    than Allaah and His Messenger, and striving hard and fighting in His Cause, 
    then wait until Allaah brings about His Decision (torment). And Allaah 
    guides not the people who are Al-Faasiqoon (the rebellious, disobedient to 
    Allaah)”

    [al-Tawbah 9:24] 

    “O you who believe! Verily, among your wives and your 
    children there are enemies for you (who may stop you from the obedience of 
    Allaah); therefore beware of them! But if you pardon (them) and overlook, 
    and forgive (their faults), then verily, Allaah is Oft-Forgiving, Most 
    Merciful”

    [al-Taghaabun 64:14]

    ‘Attaar ibn Yassaar said: All of Soorat al-Taghaabun was 
    revealed in Makkah, apart from these verses, which were revealed concerning 
    ‘Awf ibn Maalik al-Ashja’i, who had wives and children, and when he wanted 
    to go out for jihad they wept and tore at his heart, and said, “Who are you 
    leaving us to?” He felt sorry for them so he stayed, then this whole verse 
    was revealed in Madeenah concerning ‘Awf ibn Maalik al-Ashja’i. 

    Al-Tirmidhi narrated that Ibn ‘Abbaas said, when a man asked 
    him about this verse: Those were some men from Makkah who became Muslim, and 
    they wanted to go and join the Prophet  (peace and blessings of Allaah 
    be upon him) [in Madeenah], but their wives and children refused to let them 
    go to join the Prophet  (peace and blessings of Allaah be upon him). 
    When they finally came to the Prophet  (peace and blessings of Allaah be 
    upon him) they saw that the people had learned a great deal about Islam, and 
    they wanted to punish (their wives and children), then Allaah revealed this 
    verse. This was classed as hasan by al-Albaani in Saheeh al-Tirmidhi, 
    3317. 
We ask Allaah to make 
    His religion prevail and to relieve the distress of our Muslim brethren, for 
    He is Able to do that.