Surah 2

Surah 2:187

"It is permitted to you on the night of the fast to have sexual relations with your wives. They are a covering for you, and you are a covering for them. God knows that you have been betraying yourselves (in this regard), and has turned to you (in forgiveness) and pardoned you. So now have relations with them, and seek what God has prescribed for you. And eat and drink, until a white thread may be discerned from a black thread at the dawn. Then keep the fast completely until night, and do not have relations with them while you are devoted to the mosques. Those are the limits (set by) God, so do not go near them. In this way God makes clear His signs to the people, so that they may guard (themselves)."