Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh.

May Allah forgive all our sins. Scholars maintained that chastity is one of the prerequisites of getting married to a Christian woman. It has been stipulated in the Quran. Furthermore, the Quran sates, “The fornicator does not marry except a [female] fornicator or polytheist, and none marries her except a fornicator or a polytheist, and that has been made unlawful to the believers.” (An-Nur 24:3)

However, if a girl commits fornication, she is obliged to take the initiative to repent. Similarly, the man who committed fornication with her is obliged to repent. If marriage takes place before repentance, according to the correct view, such marriage is correct and should continue. There is no explicit proof to suggest that such a type of marriage is invalid or has to be concluded again.

Almighty Allah knows best.