An-Nur (The Light)
Surah 24 · Verse 31
And say to the believing women that they should keep their looks down and guard their private parts, and that they should not let their beauty be exposed, except that which appears thereof, and that they should draw their head covering over their bosoms and not let their beauty be exposed (by removing their head covering), except before their husbands or their fathers or fathers of their husbands or their sons or their husbands sons (through other wives) or their brothers or their brothers’ sons or their sisters’ sons or their women or those whom their right hands possess (slave girls) or male servants not having need (of women) or children who have no knowledge of hidden parts of women, and they should not strike their feet so as to make known that which is hidden of their beauty. And turn to Allah all together, O believers! that you may be made successful.
It is probably when women go out or have visitors at home that they should wear head covers covering their bosoms. They can move about without head covers in their houses before people living in the house listed in theverse. Inspite of the head cover a woman will not be able to hide her height or slimness etc. She is summarily advised not to attract the attention of men by exposing her beauty or in some other manner.
