And whoever among you cannot afford to marry free believing women, (let him marry) such of your believing maidens as your right hands possess. And Allah knows best your faith -- you are (sprung) the one from the other. So marry them with the permission of their masters, and give them their dowries justly, they being caste, not fornicating, nor receiving paramours; then if they are guilty of adultery when they are taken in marriage, they shall suffer half the punishment for free married women. This is for him among you who fears falling into evil. And that you abstain is better for you. And Allah is Forgiving, Merciful.