Verily when a woman has achieved puberty, she should not reveal her body except for this and this - showing the face and the palms (hands). (Narrated by Abu Daud) Although there is a discussion about narrators of this hadith, it is strengthen by many other hadith that allows revealing of the face and the palms if it does not bring any harm (fitnah). (Al-Halal Wal Haram Fil Islam) This hadis also