Hadith 101
“he asked the Messenger of Allah (ﷺ) about righteousness and sin. He said: Righteousness is good character, and Sin is what makes you feel uncomfortable and you would hate for people to find out about it.”
An-Nawwas ibn Sam'an al-Ansari (رضي الله عنه)Al-Adab Al-Mufrad 302Adab of Excellence in Character