How can you take it back when you have reached one another (sexually) and they have taken from you a strong covenant! (۲۱)

And do not marry women your fathers married unless it is a thing of the past surely that was an indecency, hated, and a way of evil. (۲۲)

Forbidden to you are your mothers, your daughters, your sisters, your paternal aunts and maternal aunts, your brother's daughters, your sister's daughters, your mothers who have given suck to you, your suckling sisters, your wives mothers, and your stepdaughters who are in your care from your wives with whom you have lain, but if you have never lain with them it is no fault in you. (Also forbidden to you) are the wives of your sons who are of your loins, and to take to you two sisters together unless it is a thing of the past. Allah is the Forgiver and the Most Merciful. (۲۳)

And (forbidden to you) are married women, except those whom your right hand owns. Such Allah has written for you. Lawful to you beyond all that, is that you can seek using your wealth in marriage and not fornication. So whatever you have enjoyed from them give them their obligated wage. And there is no fault in you in what ever you mutually agree after the obligation. Allah is the Knower, the Wise. (۲۴)

If any one of you do not have the affluence to be able marry free believing women, (let him marry) from among the believing women that your right hand owns. Allah knows best your belief, you are from each other. Marry them with the permission of their people and give them their wages (dowry) honorably being women in marriage and chaste, not taking lovers. If, after marriage they commit adultery, they shall be liable to half the punishment of a married (free) woman. That is for those of you who fear fornication, but it is better for you to be patient. Allah is the Forgiver, the Most Merciful. (۲۵)

Allah wishes to make this clear to you and to guide you along the ways of those who have gone before you, and turns towards you. And Allah is the Knower, the Wise. (۲۶)

Allah wishes to turn towards you, but those who follow their lower desires wish you to greatly swerve away. (۲۷)

Allah wishes to lighten for you (the jurisprudence), and humans are created weak. (۲۸)

Believers, do not consume your wealth among yourselves in falsehood, except there be trading by your mutual agreement. And do not kill yourselves. Allah is the Most Merciful to you. (۲۹)

But whosoever does that in transgression and wrongfully We shall roast him in the Fire. That is an easy matter for Allah. (۳۰)