Sahih al-Bukhari 6131
صحيح البخاري#6131SahihNarrated Aisha:A man asked permission to see the Prophet. He said, "Let Him come in; What an evil man of the tribe he is! (Or, What an evil brother of the tribe he is). But when he entered, the Prophet (ﷺ) spoke to him gently in a polite manner. I said to him, "O Allah's Apostle! You have said what you have said, then you spoke to him in a very gentle and polite manner? The Prophet (ﷺ) said, "The worse people, in the sight of Allah are those whom the people leave (undisturbed) to save themselves from their dirty language
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 78:158