Is Satan the inherent evil force within man himself, and what is the ruling on believing that?

This statement suggests a denial of the devil's existence, which is the doctrine of atheists, philosophers, and rationalists. Sheikh al-Islam Ibn Taymiyyah explicitly stated that this view is among the sayings of the philosophical atheists who consider angels to be the forces of the righteous soul and devils to be the forces of the wicked soul. This is the saying of the Batiniyyah Qaramita and those who followed their path. Sheikh Waleed Al-Sa’eedan affirmed that scholars have unanimously agreed on the invalidity of the philosophers' saying that angels and devils have no reality, but are merely forces of good and evil, and that this saying is disbelief and misguidance. Sheikh Abdullah Al-Ghunaiman mentioned that denying the existence of jinn is disbelief and an exit from Islam, because it is something upon which the books of Allah and the traditions of the messengers have successively attested.