(29) Excellent Qualities and Description of the Prophet
كتاب الفضائل والشمائل
(3a) Chapter: His Character and Natural Disposition - Section 1
(3) باب في أخلاقه وشمائله صلى الله عليه وسلم - الفصل الأول
Mishkat al-Masabih 5813 
Abu Sa'id al-Khudri said:
The Prophet was more modest than a virgin in her apartment, and when he saw anything of which he disapproved we could recognise the fact in his face. (Bukhari and Muslim.)
وَعَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَشَدَّ حَيَاءً مِنَ الْعَذْرَاءِ فِي خِدْرِهَا فَإِذَا رَأَى شَيْئًا يَكْرَهُهُ عَرَفْنَاهُ فِي وَجْهِهِ. مُتَّفَقٌ عَلَيْهِ
 مُتَّفَقٌ عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 5813
In-book reference : Book 29, Hadith 73