The ruling on publicizing the errors of some callers to Allah, and what is the Muslim's duty toward them?

Question:
We have a call from Abu 'Umar from al-Hafar al-Batin. Yes, Abu 'Umar. Peace be upon you, and Allah's mercy and blessings. Peace. I ask Allah for your love, O our Shaykh. May Allah welcome you. By Allah. Abu 'Umar. Our question, O our Shaykh. Please, go ahead. Is it permissible to backbite and warn against some callers to Allah by saying they are followers of their desires and followers of religious innovation (bid'ah), and to bring up some video clips of scholars saying, "So-and-so the scholar warns against so-and-so the caller," and others, saying that he is a follower of bid'ah and a follower of his desires? And is it permissible to spread such clips and publicize them, or is it obligatory to advise them and guide them in the best manner? Thank you, Abu 'Umar. Please, my dear.

Answer:
What you mentioned at the end of your speech is the obligatory duty: advising them and pointing out their errors to them, so that perhaps they will retract from them, and conveying what has been said about them so that they may correct it. This is part of advice. And the Messenger (peace and blessings be upon him) said: You advise them. As for speaking about people, criticizing people, and backbiting, this is not permissible. Backbiting about people does not lead to any benefit; rather, it leads to stirring up trouble and sowing hatred between people, and it does not lead to any benefit. So do not engage in this by speaking about people or about callers, even if they err. If you are able, point it out to them and advise them; this is obligatory. Otherwise, remain silent about them and guard your tongues. Yes.