O you who believe, when believing women (abandon the enemy and) ask for asylum with you, you shall test them. GOD is fully aware of their belief. Once you establish that they are believers, you shall not return them to the disbelievers. They are not lawful to remain married to them, nor shall the disbelievers be allowed to marry them. Give back the dowries that the disbelievers have paid. You commit no error by marrying them, so long as you pay them their due dowries. Do not keep disbelieving wives (if they wish to join the enemy). You may ask them for the dowry you had paid, and they may ask for what they paid. This is GOD's rule; He rules among you. GOD is Omniscient, Most Wise.