Imam Ali Ibn Abi Talib (as)

"The Wīlāyāt of ‘Alī has been written in all of the books of the Prophets and Allah did not appoint a single Messenger except with a (pledge to the) Prophethood of Muhammad and the successorship of ‘Alī."

 

Imām Alī ibn Mūsā al-Rezā (a.s.)

Safīnātul Bīhār v. 2, p. 691

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