Narrated Aisha Siddiqa (may Allah be pleased with her) that a man sought permission to enter upon the Messenger of Allah (peace and blessings be upon him), so the Prophet said, "Allow him to enter, he is a bad man from such-and-such tribe." When the man entered, the Prophet spoke to him gently. I said, "O Messenger of Allah! You said what you had to say about him, and then you spoke to him gently." The Prophet (peace and blessings be upon him) said, "Aisha! The worst person is the one whom people avoid because of his foul language."