Hizab compulsory for Muslims

And tell the believing women to lower their gaze (from looking at forbidden things), and protect
their private parts (from illegal sexual acts, etc.) and not to show off their adornment except only that
which is apparent (like palms of hands or one eye or both eyes for necessity to see the way, or outer
dress like veil, gloves, head-cover, apron, etc.), and to draw their veils all over Juyubihinna (i.e. their
bodies, faces, necks and bosoms, etc.) and not to reveal their adornment except to their husbands, their
fathers, their husbands fathers, their sons, their husbands sons, their brothers or their brothers sons, or
their sisters 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 the
shame of sex. And let them not stamp their feet so as to reveal what they hide of their adornment. And
all of you beg Allah to forgive you all, O believers, that you may be successful. ( Surah: An noor ch:24 v:31)