(13) باب كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم أَحْسَنَ النَّاسِ خُلُقًا
Anas reported Allah's Messenger (ﷺ) as saying:
I served the Messenger of Allah (ﷺ) for nine years, and I do not know (of any instance) when he said to me: Why you have done this and that, and he never found fault with me in anything.
Reference: Sahih Muslim 2309 d
In-book reference: Book 43, Hadith 73
USC-MSA web (English) reference(deprecated numbering scheme): Book 30, Hadith 5723