What is the response to the one who says: The foundation of his (peace and blessings be upon him) call is the call to noble morals, citing the hadith (I was sent to perfect noble morals)

Question:
Honorable Shaykh, may Allah grant you success, some say that Allah sent His Prophet Muhammad (peace and blessings be upon him) and that the foundations of his call are the call to noble morals, citing his (peace and blessings be upon him) saying or good morals. How should one respond to this?

Answer:
The hadith is weak. This is what they argue with. This hadith is weak and cannot be used as evidence. However, if it were authentic, the greatest of noble morals is tawhid (the oneness of Allah), and the worst of moral evils is shirk (associating partners with Allah). This is if the hadith were authentic. Yes.