BOOK OF MODESTY IS PART OF FAITH H 686 "The Prophet, praise and peace be upon him, passed by a man from the Ansar who was teasing his brother about his modesty. The Prophet, praise and peace be upon him, said. 'Leave him alone, modesty is part of faith.'" R 686 Bukhari and Muslim with a chain up to ibn Omar who related this hadith.
1- كتَاب الأدَب باب الحياء وفضله والحث على التخلق به 680- عن ابن عمر رضي الله عنهما : أنَّ رسول الله صلى الله عليه وآله وسلم مَرَّ عَلَى رَجُلٍ مِنَ الأنْصَار وَهُوَ يَعِظُ أخَاهُ في الحَيَاءِ ، فَقَالَ رسولُ اللهِ صلى الله عليه وآله وسلم : "دَعْهُ ، فَإنَّ الْحَيَاءَ مِنَ الإيمَانِ" متفقٌ عَلَيْهِ .