We hope this message reaches you in the best of health and Imaan. Ameen.
Awrah is considered to be that which is mandatory for every person to cover as commanded by Allah Ta'ala. The awrah of a man is the area from the navel to the knees and the awrah of a woman is everything except the hands, face, and feet. In front of non-Mahram men, according to the Hanafi madhab, it is wajib for a Muslim woman to also cover her face.
[Editor's note: please review Hijab book and articles at http://islameasy.org/hijab.php and additional answers on this page on the topic of Hijab.]
And Allah knows best.
Ask Alimah Team
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