An-Nur 24:33 وليستعفف الذين لا يجدون نكاحا حتى يغنيهم الله من فضله والذين يبتغون الكتاب مما ملكت ايمانكم فكاتبوهم ان علمتم فيهم خيرا واتوهم من مال الله الذي اتاكم ولا تكرهوا فتياتكم على البغاء ان اردن تحصنا لتبتغوا عرض الحياة الدنيا ومن يكرههن فان الله من بعد اكراههن غفور رحيم ٣٣

And let those who find not the financial means for marriage keep themselves chaste, until Allâh enriches them of His Bounty. And such of your slaves as seek a writing (of emancipation), give them such writing, if you find that there is good and honesty in them. And give them something (yourselves) out of the wealth of Allâh which He has bestowed upon you. And force not your maids to prostitution, if they desire chastity, in order that you may make a gain in the (perishable) goods of this worldly life. But if anyone compels them (to prostitution), then after such compulsion, Allâh is Oft-Forgiving, Most Merciful (to those women, i.e. He will forgive them because they have been forced to do this evil act unwillingly).