Literally, leadership. Refers to a key pillar of Shi’ah  Islam: Belief in the 12 Imāms (ʿa) as divinely appointed spiritual leaders and guides after Prophet Muḥammad (ṣ)

In the school of Ahl al-Bayt (Shi’ah Islam), it is believed that leadership in all religious and worldly matters belongs with the infallible descendants of the Prophet (ṣ), who Allah divinely appointed.