Sahih al-Bukhari
Book 2: Belief
كتاب الإيمان
51 hadith in this book
Chapter 16 Al-Haya (self-respect, modesty bashfulness, honour etc.) is a part of faith
باب الْحَيَاءُ مِنَ الإِيمَانِ
Narrated 'Abdullah (bin 'Umar):
Once Allah's Messenger (ﷺ) passed by an Ansari (man) who was admonishing his brother regarding Haya'. On that Allah's Messenger (ﷺ) said, "Leave him as Haya' is a part of faith." (See Hadith 9)
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ أَخْبَرَنَا مَالِكُ بْنُ أَنَسٍ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم مَرَّ عَلَى رَجُلٍ مِنَ الأَنْصَارِ وَهُوَ يَعِظُ أَخَاهُ فِي الْحَيَاءِ، فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " دَعْهُ فَإِنَّ الْحَيَاءَ مِنَ الإِيمَانِ ".
Hadith text, translations and grading are courtesy of Sunnah.com.