What is the opinion on the statement that the Messenger erred in the means of da'wah (calling to Islam) and his Lord corrected him, and that his statement is not accepted unless with a sound argument?

Question:
May Allah reward you, Your Eminence, father. The questioner asks: What is the ruling on the one who says that most of the Sunnah is revelation, and that the Prophet (peace and blessings be upon him) erred in the means of da'wah, so his Lord corrected him and disciplined him, and that the Prophet (peace and blessings be upon him) and those below him are not to be accepted in their statements unless with a sound argument? What is the ruling on this statement and on studying under this condition?

Answer:
This is ugly speech, bad speech, and it is not permissible to listen to it or remain silent about it. It diminishes the Messenger (peace and blessings be upon him). Allah, Mighty and Majestic, said of him: This attributes error to the Messenger (peace and blessings be upon him) in matters of religion and matters of the Shari'ah, which are revelation from Allah. As for matters of this world, the Messenger consults his Companions in matters of this world, is that not so? In matters of this world, he consults his Companions. But as for matters of the Shari'ah, these are based on revelation from Allah, Mighty and Majestic, and there is no Yes.