God’s Book states...

God’s Book states: Marry women of your choice (12) The first stage of this purity of men and women is their inward purity, that is, belief in God, the Hereafter, the Prophethood, the Quran, the angels and having divine morality. Therefore, a believing Muslim man does not have the right to marry non-Muslim, unbelieving women. If such a forbidden marriage takes place, then their children are considered to be born in sin.

In the same manner a Muslim believing woman does not have the right to marry an unbelieving man, and their marriage is considered illegitimate, as are their children. Believing men or women are not matched with unbelieving men or women. Should such a forbidden marriage take place, both sides are exposed to Eternal Torture.

The Glorious Quran has seriously advised against the marriage of a believing person with an unbeliever: Do not marry unbelieving women (idolaters), until they believe: a slave woman who believes is better than an unbelieving woman…