(Batiniyya). Those of the inward reality.The mystics or esotericists who declare that only the inward reality is true, thereby denying the secondary causes (asbab) which have been established as a means for man to know Allah.
(Asbab). These were established as a means by which man can come to know Allah, yet for the majority of mankind the secondary causes act as veils over Reality.
Secondary Causes
(Al Muhaqqiqun). These great ones form the highest category of friends of Allah. They follow no one's authority because in themselves they have verified and realized [through unveiling and finding], the truth and reality of all things which is Allah, the Real. They are also known as'The People of Unveiling and Finding'.
Verifiers