Al-Haya (self-respect, modesty bashfulness, honour etc.) is a part of faith

Narrated 'Abdullah (bin 'Umar):

Once Allah's Apostle ﷺ passed by an Ansari (man) who was admonishing to his brother regarding Haya'. On that Allah's Apostle ﷺ said, "Leave him as Haya' is a part of faith." (See Hadith No. 8)

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ أَخْبَرَنَا مَالِكُ بْنُ أَنَسٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ ﷺ مَرَّ عَلَى رَجُلٍ مِنَ الأَنْصَارِ وَهُوَ يَعِظُ أَخَاهُ فِي الْحَيَاءِ، فَقَالَ رَسُولُ اللَّهِ ﷺ " دَعْهُ فَإِنَّ الْحَيَاءَ مِنَ الإِيمَانِ ".