154Sahih MuslimSahihحَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، بِهَذَا الإِسْنَادِ وَقَالَ مَرَّ بِرَجُلٍ مِنَ الأَنْصَارِ يَعِظُ أَخَاهُ .Zuhri has narrated this hadith with the addition of these words:He (the Holy Prophet) happened to pass by a mass of Ansar who was instructing his brother (about modesty).Reference: Sahih Muslim 36 b In-book : Book 1, Hadith 62 USC-MSA web (English) : Book 1, Hadith 58 (deprecated)