What is the ruling on backbiting an innovator without a legitimate Shari'ah interest?

Question:
Honorable Shaykh, may Allah grant you success, he says: What is the ruling on backbiting an innovator without a legitimate Shari'ah interest?

Answer:
It is not permissible. Backbiting is not permissible, it is not permissible except for a legitimate Shari'ah interest, such as when one denounces a wrong or complains about oppression, saying, "So-and-so did such-and-such," or "So-and-so ate my money." This is permissible. A woman complaining about her husband that he is a miser, as Hind bint 'Utbah said that her husband Abu Sufyan (may Allah be pleased with him) was a miser. This is for the sake of reaching the truth, so there is no harm. For the sake of denouncing wrong and establishing discipline and the hudud (fixed punishments) against him, there is no harm. Yes.