Quran 2:221 — The Heifer (Al-Baqarah)

Do not marry idolatresses unless they believe; a believing woman is better than an idolatress, even if you like her. Nor shall you give your daughters in marriage to idolatrous men, unless they believe. A believing man is better than an idolater, even if you like him. These invite to Hell, while GOD invites to Paradise and forgiveness, as He wills. He clarifies His revelations for the people, that they may take heed.

[2:220] upon this life and the Hereafter. And they ask you about the orphans: say, "Bringing them up as righteous persons is the best you can do for them. If you mix their property with yours, you shall treat them as family members." GOD knows the righteous and the wicked. Had GOD willed, He could have imposed harsher rules upon you. GOD is Almighty, Most Wise.

[2:222] They ask you about menstruation: say, "It is harmful; you shall avoid sexual intercourse with the women during menstruation; do not approach them until they are rid of it. Once they are rid of it, you may have intercourse with them in the manner designed by GOD. GOD loves the repenters, and He loves those who are clean."