Categories of women who are forbidden for marriage

And do not wed the women your fathers had wed. What happened in the past is now past: It was lewd and abhorrent, and only the way of evil.

Unlawful are your mothers and daughters and your sisters to you, and the sisters of your fathers and your mothers, and the daughters of your brothers and sisters, and foster mothers, foster sisters, and the mothers of your wives, and the daughters of the wives you have slept with who are under your charge; but in case you have not slept with them there is no offence (if you marry their daughters); and the wives of your own begotten sons; and marrying two sisters is unlawful. What happened in the past (is now past): God is forgiving and kind.

Also forbidden are married women unless they are captives (of war). Such is the decree of God. Lawful for you are women besides these if you seek them with your wealth for wedlock and not for debauchery. Then give those of these women you have enjoyed, the agreed dower. It will not be sinful if you agree to something (else) by mutual consent after having settled the dowry. God is certainly all-knowing and all-wise.