Quran-2:187
It has been made lawful for you to go to your wives the night [preceding] fasting. They are clothing for you and you are clothing for them. God knows that you used to deceive yourselves, so He turned towards you and forgave you. So now, have relations with them and seek that which God has decreed for you. And eat and drink until the white thread of dawn becomes clear to you from the black thread [of night]. Then complete the fast until the night. *Judges 20:26*, *2Samuel 1:12, *2Samuel 3:35 And do not have relations with them as long as you are devoted in the mosques. These are the limits [set by] God, so do not approach them. Thus, God makes His verses clear to the people so that they may fear [Him].