While Imām Mahdī’s Hujjah was clear [certain], why before his birth did some Shiites considered Imām Ali or his son “Muḥammad ibn Hanafiyyah”, Nafs Zakiyyah, Imām Ṣādiq, Imām Kādhim, Imām Hādī’s son “Sayyid Muḥammad, or even Imām Askarī as Imām Mahdī?! 16 August 26
