Mukhtasar Bukhari (Abridged) 23 — Modesty is part of faith

Narrated Ibn Umar (may Allah be pleased with them) that the Messenger of Allah (peace and blessings of Allah be upon him) once passed by an Ansari man who was advising his brother regarding modesty. The Messenger of Allah (peace and blessings of Allah be upon him) said: "Leave him (from advising about modesty), for modesty is a part of faith."