Abu Dawud Book 27, Hadith Number 4092.

Chapter : How much beauty can a woman display.

Narated By ‘Aisha, Ummul Mu’minin : Asma, daughter of Abu Bakr, entered upon the Apostle of Allah (PBUH) wearing thin clothes. The Apostle of Allah (PBUH) turned his attention from her. He said: O Asma’, when a woman reaches the age of menstruation, it does not suit her that she displays her parts of body except this and this, and he pointed to her face and hands.