Marriage, Forbidden for marriage

And do not marry those [women] whom your fathers married, except what has already occurred.¹ Indeed, it was an immorality and hateful [to Allāh] and was evil as a way.

Prohibited to you [for marriage] are your mothers, your daughters, your sisters, your father's sisters, your mother's sisters, your brother's daughters, your sister's daughters, your [milk] mothers who nursed you, your sisters through nursing, your wives' mothers, and your step-daughters under your guardianship [born] of your wives unto whom you have gone in. But if you have not gone in unto them, there is no sin upon you. And [also prohibited are] the wives of your sons who are from your [own] loins, and that you take [in marriage] two sisters simultaneously, except for what has already occurred.¹ Indeed, Allāh is ever Forgiving and Merciful.

And [also prohibited to you are all] married women except those your right hands possess.¹ [This is] the decree of Allāh upon you. And lawful to you are [all others] beyond these, [provided] that you seek them [in marriage] with [gifts from] your property, desiring chastity, not unlawful sexual intercourse. So for whatever you enjoy [of marriage] from them, give them their due compensation² as an obligation. And there is no blame upon you for what you mutually agree to beyond the obligation. Indeed, Allāh is ever Knowing and Wise.