Qur'an, orders Muslims to dress in a "modest" fashion. Following verses are generally interpreted as applying to all Muslim men and women.
“ Believers! Enter not the houses other than your own until you have introduced yourselves and wished peace to those in them. That is best for you that you may be heedful. If you find no one in the house, enter not until permission is given to you. If you are asked to go back, go back, for it is purer for you. Allah has knowledge of all which you do. It is no sin for you to enter non-residential places in which there is benefit for you. And Allah has knowledge of what you reveal and what you conceal. [O Prophet!] tell believing men to restrain their eyes and guard their private parts. That is purer for them. And Allah is well aware of what you do. And tell the believing women to restrain their eyes and to guard their private parts and to display of their ornaments only those [which are worn on limbs] which are normally revealed and to draw their khumūr over their bosoms. They should not reveal their ornaments to anyone save their husbands or their fathers or their husbands’ fathers or their sons or their husbands’ sons or their brothers or their brothers’ sons or their sisters’ sons or other women of acquaintance or their slaves or the subservient male servants who are not attracted to women or children who have no awareness of the hidden aspects of women. They should [also] not stamp their feet in order to draw attention to their hidden ornaments. Believers turn to Allah in repentance that you may prosper. „
— Qur'an , 24:27-31
Following verses are taken to apply to the wives of Muhammad, though some commentators believe that all women should imitate their example.
“ Wives of the Prophet, you are not like other women. So, if you fear God, do not be too complaisant in your speech, lest the lecherous-hearted should lust after you. Talk with such people in plain and simple words. Abide still in your homes and do not display your finery as women used to do in the days of ignorance. Attend to your prayers, give alms and obey God and His Messenger. O woman of this house, the Almighty wants to cleanse you from the filth [these hypocrites want to besmear you with] and to fully purify you. Communicate what is taught to you of the verses of God and the wisdom revealed by Him [to your visitors]. The Almighty is very discerning and all-knowing. „
— Qur'an , 33:32-34
In following verses, Muslim women are asked to draw their jalābib (when they go out), as a measure to distinguish themselves from others, so that they are not harassed.
“ Those who harass believing men and believing women unjustifiably shall bear the guilt of slander and a grievous sin. O Prophet! Enjoin your wives, your daughters, and the wives of true believers to draw their cloaks over them [when they go out]. That is more proper, so that they may be distinguished [from slave women] and not be harassed. God is ever forgiving and merciful. If the hypocrites and those who have the ailment [of jealousy] in their hearts and the scandal mongers of Madinah do not desist, We will rouse you against them, and their days in that city will be numbered. Cursed be they; wherever found, they would be seized and put to death. „
— Qur'an , 33:58-61
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