that once Messenger of Allah ﷺ passed by an Ansari (man) who was admonishing his brother regarding Haya'. On that Messenger of Allah ﷺ said, "Leave him as Haya' is a part of faith." (See Hadith 9)  

أَنَّ رَسُولَ اللَّهِ ﷺ مَرَّ عَلَى رَجُلٍ مِنَ الأَنْصَارِ وَهُوَ يَعِظُ أَخَاهُ فِي الْحَيَاءِ، فَقَالَ رَسُولُ اللَّهِ ﷺ: «دَعْهُ، فَإِنَّ الْحَيَاءَ مِنَ الإِيمَانِ۔»