An-Noor 24:3

A man who fornicates would only marry[2] a woman who fornicates or a polytheist, and a woman who fornicates would only marry a man who fornicates or a polytheist. Such marriages are forbidden to the believers[3].

[2] i.e., is inclined to marry.
[3] Such persons cannot be married to believers unless they repent.

The fornicator does not marry except a [female] fornicator or polytheist, and none marries her except a fornicator[975] or a polytheist, and that [i.e., marriage to such persons] has been made unlawful to the believers.

[975] Included in this ruling is the adulterer as well. Such persons cannot be married to believers unless they have repented and reformed.

3. The adulterer-fornicator marries not but an adulteress-fornicatress or a Mushrikah, and the adulteress-fornicatress none marries her except an adulterer-fornicator or a Muskrik [and that means that the man who agrees to marry (have a sexual relation with) a Mushrikah (female polytheist, pagan or idolatress) or a prostitute, then surely he is either an adulterer-fornicator, or a Mushrik (polytheist, pagan or idolater). And the woman who agrees to marry (have a sexual relation with) a Mushrik (polytheist, pagan or idolater) or an adulterer-fornicator, then she is either a prostitute or a Mushrikah (female polytheist, pagan, or idolatress)]. Such a thing is forbidden to the believers (of Islâmic Monotheism).

The adulterer shall not marry save an adulteress or an idolatress, and the adulteress none shall marry save an adulterer or an idolater. All that is forbidden unto believers.