O Prophet! Tell your wives and your daughters and the women of the believers to draw their cloaks (veils) all over their bodies (i.e. screen themselves completely except the eyes or one eye to see the way). That will be better, that they should be known (as free respectable women) so as not to be annoyed. And Allah is Ever of Forgiving, Most Merciful.
Sura AL-Ahzab
Ayath 59

Verily, those who accuse chaste women, who never even think of anything touching their chastity and are good believers, are cursed in this life and in the Hereafter, and for them will be a great torment
An-Nur
Ayath 23

Bad statements are for bad people (or bad women for bad men) and bad people for bad statements (or bad men for bad women). Good statements are for good people (or good women for good men) and good people for good statements (or good men for good women), such (good people) are innocent of (each and every) bad statement which they say, for them is Forgiveness, and Rizqun Karîm (generous provision i.e. Paradise).
An-Nur
Ayath 26

.Tell the believing men to lower their gaze (from looking at forbidden things), and protect their private parts (from illegal sexual acts, etc.). That is purer for them. Verily, Allah is All-Aware of what they do.
An-Nur
Ayath 30

And tell the believing women to lower their gaze (from looking at forbidden things), and protect their private parts (from illegal sexual acts, etc.) and not to show off their adornment except only that which is apparent (like palms of hands or one eye or both eyes for necessity to see the way, or outer dress like veil, gloves, head-cover, apron, etc.), and to draw their veils all over Juyubihinna (i.e. their bodies, faces, necks and bosoms, etc.) and not to reveal their adornment except to their husbands, their fathers, their husband's fathers, their sons, their husband's sons, their brothers or their brother's sons, or their sister's sons, or their (Muslim) women (i.e. their sisters in Islam), or the (female) slaves whom their right hands possess, or old male servants who lack vigour, or small children who have no sense of the shame of sex. And let them not stamp their feet so as to reveal what they hide of their adornment. And all of you beg Allah to forgive you all, O believers
An-Nur
Ayath 31

Allâh wishes to accept your repentance, but those who follow their lusts, wish that you (believers) should deviate tremendously away from the Right Path.
An-Nisa
Ayath 27

O wives of the Prophet! You are not like any other women. If you keep your duty (to Allah), then be not soft in speech, lest he in whose heart is a disease (of hypocrisy, or evil desire for adultery, etc.) should be moved with desire, but speak in an honorable manner.
Al-Ahzab
Ayath 32

And stay in your houses, and do not display yourselves like that of the times of ignorance, and perform As-Salat (Iqamat­as­Salat), and give Zakat and obey Allah and His Messenger. Allah wishes only to remove Ar­Rijs (evil deeds and sins, etc.) from you, O members of the family (of the Prophet SAW), and to purify you with a thorough purification.
Al-Ahzab
Ayath 33