Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
muslim:36bʿAbd b. Ḥumayd > ʿAbd al-Razzāq > Maʿmar > al-Zuhrī Bihadhā al-Isnād

He (the Holy Prophet) happened to pass by a mass of Ansar who was instructing his brother (about modesty).  

مسلم:٣٦bحَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنِ الزُّهْرِيِّ بِهَذَا الإِسْنَادِ

وَقَالَ مَرَّ بِرَجُلٍ مِنَ الأَنْصَارِ يَعِظُ أَخَاهُ