The Light - 24:23 Those who slander the believing women who are chaste and unaware (of evil) will be cursed in this world and the Hereafter, and for them will be a great punishment.
The believers are chaste:
The Women/4:34 Men watch over women. For Allah has given each of them different abilities and qualities. Indeed, men are responsible for the maintenance of the household. The righteous women submit (to God´s law) and protect (their honor and chastity) which God has commanded them to protect, even if they are alone. Admonish those women whose chastity you are concerned about, separate your beds, and finally remove them. If they obey you, do not seek a way against them. Allah is the Great, the Exalted.

Prophet Joseph/12:23 "The woman in whose house he was wanted to seduce him, so he locked the doors and said: "I belong to you completely."He said: "I seek refuge in Allah. He is my Lord, who has given me a good place. The wrongdoers will not succeed."
Prophet Joseph/12:24 She lusted after him, and he would have lusted after her too had he not seen the sign of his Lord. So We turned away evil and mischief from him, and he was of Our pure servants.
Prophet Joseph/12:25 "They ran towards the door. She tore his shirt from behind. They met her master near the door. The woman said: "Should not he who wants to rape your wife be imprisoned or punished with a painful torment?"
Prophet Joseph/12:26 "He said: "Actually, your wife wanted to seduce me."A family witness said: "If her shirt is torn in the front, she is telling the truth and he is a liar."
Prophet Joseph/12:27 "He testified, "If her shirt is torn from the back, then she is a liar and he is truthful."
Prophet Joseph/12:28 "When he saw that her shirt was torn in the back, he said, "This is the plan of you women. Your plan is great."
Prophet Joseph/12:29 Joseph, forget this incident. And you ask forgiveness for your sin. You have committed a mistake.
Prophet Joseph/12:30 "Some women in the city: "The governor´s wife is trying to seduce her maid,"they said, "She is madly in love with him. We see her in a clear perversion."
Prophet Joseph/12:31 "When the woman heard their gossip, she invited them. She prepared comfortable places for them. She gave each of them a knife. (While they were busy peeling the fruit, she said to Joseph:) "Come into their presence."When the women saw him, they were so impressed that they cut their hands and said: "God forbid, this is not a human being, but a noble angel"."
Prophet Joseph/12:32 "(She said): "This is what you accused me of. I wanted to seduce him, but he kept (his chastity) and refused me. If he does not do what I command him, he will be thrown into prison and humiliated"."

Mary/19:19 "(The angel said:) "I am a messenger from your Lord, commissioned to give you a pure son."
Mary/19:20 "He said, "How can I have a son when no human hand has touched me and I have not been unchaste?"

The Light/24:30 Instruct the believers to guard their eyes (not to stare at women) and to guard their chastity. This is a purer behavior for them. Surely Allah is aware of what they do.
The Light/24:31 And tell the believing women that they should guard their eyes and guard their chastity and not show their fair parts except those which should be uncovered. Let them cover their veils over their breasts. And let them not show the fair parts of their bodies to anyone except their husbands, their fathers, their husbands´ fathers, their husbands´ fathers, their sons, their husbands´ sons, their brothers, their brothers´ sons, their sisters´ sons, other women, male servants and laborers who do not have sexual power, and children who do not yet understand the sexual aspects of women. And let them not stamp their feet to show off their hidden parts. O you who believe, turn to Allah collectively so that you may be successful.
The Light/24:32 Marry your bachelors and your male and female servants of virtue, and if they are poor, Allah will make them rich from His bounty. Allah is Generous, Knowing.
The Light/24:33 And those who do not have the means to marry, let them be chaste until Allah enriches them with His bounty. And those captives who wish to obtain a certificate of freedom through marriage - if their intentions are honest - let them go free. And give them out of what Allah has given you. Do not force your daughters who wish to be chaste into prostitution for the temporary benefits of this world. Whoever compels them, then Allah takes into account their compulsion; He is Forgiving, Merciful.
The Light/24:60 There is no harm for old women who have no expectation of marriage to leave their outer garments, provided that they do not expose their attractive parts. It is better for them to behave chastely. Allah is All-Hearing, All-Knowing.

The Believers/23:5 And they abstain from sexual relations;
The Believers/23:6 Except for their wives, that is, those to whom their oaths/agreements entitle them. They will not be condemned.

The Criterion/25:68 They do not invoke other gods along with Allah; they do not kill unjustly the life which Allah has forbidden, nor do they commit adultery. He who commits these things pays for his sins.