(5) باب تَفْسِيرِ الْبِرِّ وَالإِثْمِ
Nawwas b. Sam'an reported:
I stayed with Allah's Messenger (ﷺ) for one year. What obstructed me to migrate was (nothing) but (persistent) inquiries from him (about Islam). (It was a common observation) that when anyone of us migrated (to Medina) he ceased to ask (too many questions) from Allah's Messenger (ﷺ). So I asked him about virtue and vice. Thereupon Allah's Messenger (ﷺ) said: Virtue is a kind disposition and vice is what rankles in your mind and that you disapprove of its being known to the people.
Reference: Sahih Muslim 2553 b
In-book reference: Book 45, Hadith 17
USC-MSA web (English) reference(deprecated numbering scheme): Book 32, Hadith 6196