"A man sought permission to enter upon the Messenger of Allah while I was with him, so he said: 'What an evil son of his tribe, or brother of his tribe.' Then he admitted him and spoke with him. When he left, I said: 'O Messenger of Allah! You said what you said about him. Then you talked politely with him?' He said: 'O 'Aishah! Indeed among the evilest of people are those whom the people avoid, or who the people leave, fearing his filthy speech.'"
Reference: Jami` at-Tirmidhi 1996 In-book : Book 27, Hadith 102 English translation : Vol. 4, Book 1, Hadith 1996
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