Narrated `Aisha: A man asked permission to enter upon Allah's Apostle. The Prophet said, "Admit him. What an evil brother of his people or a son of his people." But when the man entered, the Prophet spoke to him in a very polite manner. (And when that person left) I said, "O Allah's Apostle! You had said what you had said, yet you spoke to him in a very polite manner?" The Prophet said, "O `Aisha! The worst people are those whom the people desert or leave in order to save themselves from their dirty language or from their transgression."

Narrated 'Aisha: A man asked permission to enter upon the Prophet. When the Prophet saw him, he said, "What an evil brother of his tribe! And what an evil son of his tribe!" When that man sat down, the Prophet behaved with him in a nice and polite manner and was completely at ease with him. When that person had left, 'Aisha said (to the Prophet). "O Allah's Apostle! When you saw that man, you said so-and-so about him, then you showed him a kind and polite behavior, and you enjoyed his company?" Allah's Apostle said, "O 'Aisha! Have you ever seen me speaking a bad and dirty language? (Remember that) the worst people in Allah's sight on the Day of Resurrection will be those whom the people leave (undisturbed) to be away from their evil (deeds)."

Narrated 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 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 said, "The worse people, in the sight of Allah are those whom the people leave (undisturbed) to save themselves from their dirty language."