One of the many questions that I have been asked is why does Islam make hijab mandatory for women? Islam has introduced hijab as part of the decency and modesty in interaction between members of the opposite sex. Verse 59 of chapter 33 quoted previously gives a very good reason; it says,
“This is more appropriate so that they may be known [as Muslim women] and thus not be harassed [or molested].”
Verses that have to do with hijab:
Allaah says (interpretation of the meaning):
“And tell the believing women to lower their gaze (from looking at forbidden things), and protect their private parts (from illegal sexual acts) and not to show off their adornment except only that which is apparent (like both eyes for necessity to see the way, or outer palms of hands or one eye or dress like veil, gloves, headcover, apron), and to draw their veils all over Juyoobihinna (i.e. their bodies, faces, necks and bosoms) and not to reveal their adornment except to their husbands, or their fathers, or their husband’s fathers, or their sons, or their husband’s sons, or 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 feminine sex. And let them not stamp their feet so as to reveal what they hide of their adornment. And all of you beg Allaah to forgive you all, O believers, that you may be successful”
[al-Noor 24:31]