As-Salaam alaikum,
Abu Hurayra, may Allah be pleased with him, reported: Someone said, "O Messenger of Allah, what is character assassination (ghiba)?"
He replied, "It is your act of mentioning your brother in a manner he despises." [The interlocutor] said, 'But what if your brother matches the description that you have mentioned?'
[The Prophet] replied: "If he is as you describe him, then you have committed character assassination; if he is not as you describe him, you have committed slander." (Abu Dawud, Muslim, Tirmidhi).
Abu Hurayra, may Allah be pleased with him, reported: Someone said, "O Messenger of Allah, what is character assassination (ghiba)?"
He replied, "It is your act of mentioning your brother in a manner he despises." [The interlocutor] said, 'But what if your brother matches the description that you have mentioned?'
[The Prophet] replied: "If he is as you describe him, then you have committed character assassination; if he is not as you describe him, you have committed slander." (Abu Dawud, Muslim, Tirmidhi).