And do not marry polytheist women till they believe, and a believing slave girl is certainly better than a polytheist woman though she pleases you. And do not marry polytheist men till they believe, and a believing slave is certainly better than a polytheist man though he pleases you. Those invite (you) to the fire while Allah invites (you) to the garden and protective forgiveness through His order, and makes clear His signs for the human beings so that they may be mindful. (R 27)