Yusuf 12:40

You worship none besides Him except names that you and your forefathers have made up, for which Allah has not sent down any authority. All power belongs to Allah alone; He has commanded that you should worship none except Him[15]. This is the right religion, but most people do not know.”

[15] Peoples’ sheer ignorance leads to associating partners with Allah.

You worship not besides Him except [mere] names you have named them,[599] you and your fathers, for which Allāh has sent down no evidence. Legislation is not but for Allāh. He has commanded that you worship not except Him. That is the correct religion, but most of the people do not know.

[599] The false objects of worship which you have called "gods."

40. "You do not worship besides Him but only names which you have named (forged) - you and your fathers - for which Allâh has sent down no authority. The command (or the judgement) is for none but Allâh. He has commanded that you worship none but Him (i.e. His Monotheism); that is the (true) straight religion, but most men know not.

Those whom ye worship beside Him are but names which ye have named, ye and your fathers. Allah hath revealed no sanction for them. The decision rests with Allah only, Who hath commanded you that ye worship none save Him. This is the right religion, but most men know not.