Allah (God) almighty says in one Verse of the Holly Quran
the following:
"O
Children of Adam! We have bestowed raiment upon you to cover yourselves
(screen your private parts, etc.) and as an adornment. But the raiment of
righteousness, that is better." (Qur'an 7:26)
The widespread forms of dresses in the world today are
mostly for show off and hardly taken as a cover and shield of the woman's body.
To the believing women, however, the purpose is to safeguard their bodies and
cover their private parts as a manifestation of the order of Allah (God). It is
an act of Taqwah (righteousness ).
Allah (God) almighty did not address His Words about the
Hijab except to the believing women, Al-Mo'minat:
"And say (O Muhammad (Peace Be Upon Him) to the
believing women." (Qur'an 24: 31)
In another Verse of the Holly Quran Allah (God) almighty
also says:
"And the believing women" (Qur'an 33:
59).
A'isha (May Allah Be Pleased With her) the wife of Prophet Mohammed
(Peace Be Upon Him), addressed some women from the tribe of Banu Tameem who
came visiting her and had light clothes on them:
"If indeed you are believing women, then truly this is
not the dress of the believing women, and if you are not believing women, then
enjoy it."