Meaning Of مؤثر بالذات / Maussar Bizzat
EDIT: Why is it a nafsi ilm when it does not entail cause and effect? I think the cause-and-effect in magic and nafsi uloom are unknown, not that there aren’t any. Moreover, if Allah makes the spells of a magician effective directly without any cause-and-effect principle, then it is tantamount to Allah creating evil.