Why should a woman wear hijab?

Praise be to Allah, the Lord of the Worlds; and blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

As for the Hijab (garment which a woman put on herself), Allah says: {O Prophet! Tell your wives and the woman of the believers to draw their cloak (veils) all over their bodies. That will be better that they should be known (as free respectable women) so as not to be annoyed. And Allah is ever oft- forgiving, Most Merciful} [33:58] Allah also says: “{…And not to show off their adornment except only that which is apparent, and to draw their veils all over their bodies, and not to reveal their adornment except to their husbands, their husband’s fathers, their sons, their husband’s sons, their brothers or their brother’s sons or their sister’s sons, or their women or the 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}. [24:30] So, the Muslim woman should put on the Hijab except in front of those above mentioned in the holy verse. And Allah knows best