Exclusive Confinement of True Knowledge to the Household of the Prophet (ahl al-bayt)

Imam Ali (AS) said, ‘If you were to acquire knowledge from its source, and drink water at its freshest, and amass good at its origin, and adopt a path at its clearest point, and adopt the path of truth at its most proper, the paths would open themselves to you indeed and the signs would become manifest to you.

Imam al-Baqir (AS) said to Salama b. Kuhayl and al-Hakam b. Autayba, ‘Go to the east and go to the west but you will never find true knowledge except for what comes from us, the household of the Prophet.