Asma, daughter of AbuBakr, entered upon the Messenger of Allah ﷺ wearing thin clothes. The Messenger of Allah ﷺ 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 his face and hands. Abu Dawud said: This is a mursal tradition (i.e. the narrator who transmitted it from 'Aishah is missing) Khalid b. Duraik did not see 'Aishah.  

أَنَّ أَسْمَاءَ بِنْتَ أَبِي بَكْرٍ دَخَلَتْ عَلَى رَسُولِ اللَّهِ ﷺ وَعَلَيْهَا ثِيَابٌ رِقَاقٌ فَأَعْرَضَ عَنْهَا رَسُولُ اللَّهِ ﷺ وَقَالَ يَا أَسْمَاءُ إِنَّ الْمَرْأَةَ إِذَا بَلَغَتِ الْمَحِيضَ لَمْ تَصْلُحْ أَنْ يُرَى مِنْهَا إِلاَّ هَذَا وَهَذَا وَأَشَارَ إِلَى وَجْهِهِ وَكَفَّيْهِ  

" يَا أَسْمَاءُ: إِنَّ المَرْأَةَ إِذَا بَلَغَتِ المَحِيضَ لَمْ يَصْلُحْ أنْ يُرَى مِنْهَا شَئٌ إِلاَّ هَذَا وَهَذَا، وَأشَارَ إِلَى وَجْهِهِ وَكَفَّيْهِ ".