The Purification Verse in Surat Al Ahzaab
﴿ بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ ﴾
Oh Prophet! Say to your wives: If you desire the life of this world and its adornment, then come! I will give you a provision and allow you to depart a goodly departing.
And if you desire Allah and His Messenger and the home of the Hereafter, then surely Allah has prepared for the good-doers among you a mighty reward.
O wives of the Prophet! Whoever of you commits an open indecency, the punishment for her will be doubled; and this is easy to Allah.
And whoever of you is obedient to Allah and His Apostle and does righteous good deeds, We shall give her, her reward twice, and We have prepared for her an honorable sustenance.
O wives of the Prophet! You are not like any of the other women. If you will be on your guard, then be not soft in your speech, lest he in whose heart is a disease should be moved with a desire; but speak in an honorable manner.
And stay in your houses and do not display yourselves like that of the times of ignorance; and keep up prayer, and pay the poor-rate, and obey Allah and His Messenger.
Allah surely wants to keep the sin away from you, O People of the House! And to purify you an absolute purification.
And remember that which is recited in your houses of the verses of Allah and the wisdom; surely Allah is Ever Most Courteous, Acquainted with all things.