“Whoever worships Allah without learning (the principles of worship) from a truthful jurisprudent, Allah will let him be confused and astray and whoever claims that he has heard from other than the gate (source) that Allah has opened to His people, is considered as a polytheist. That gate is the trusted one, who has been entrusted (by Allah) with the hidden secret of Allah.” The same thing was narrated by Muhammad bin Ya’qoob al-Kulayni from some of his companions from Abdul Adheem bin Abdullah al-Hasani from Malik bin Aamir from al-Mufadhdhal bin Za’ida from al-Mufadhdhal bin Umar from Imam as-Sadiq (as).