The Knowledge of the Book
Abu Said al-Khudri: I asked the Messenger of Allah (PBUH) about the noble Ayah, “And such as have knowledge of the Book” (13:43). His Holiness (PBUH) replied: It implies my brother Ali ibn Abi Talib (AS).
Imam al-Baqir (AS): What is the concept of the noble Ayah “Say: Enough for a witness between me and you is Allah, and who has knowledge of the book” (13:43) is us [the Ahl al-Bayt]. Ali (AS), next to the Holy Prophet (PBUH), is the first, the superior, and the best of us all.
Abu’l Hassan Muhammad ibn Yahya al-Farsi: One day Abu Nuas encountered Abul Hassan Ali ibn Musa al-Reza (AS) while his Holiness (AS) was riding on a mule returning from al-Ma’mun.
Abu Nuas approached him, greeted and said: O son of the Holy Prophet (PBUH)! I have written down some couplets concerning you and I request you to hear them from me. His Holiness (AS) said: Take out what you have written. Then he read as follows: These are the pure ones whose garments are clean, and when they are recalled, greetings will be sent to them. Whoever is not an Alawi in his relation does not have an honor from the ancient time.
When Allah created the creatures and organized them, O Mankind! He picked you out and selected.
You are the superior species and with you are the knowledge of the Book and what the chapters of the Qur’an have brought down. Imam al-Reza (AS) said: You cited couplets which nobody has taken precedence of you in composing.
Ta’wil of the Holy Qur’an
The Messenger of Allah (PBUH): After me [after my demise] Ali will teach people the ta’wil of what they do not know of the Holy Qur’an.
Imam Ali (AS): Ask me about the Book of Allah, the Almighty that by Allah there has not been revealed a verse of it at night or in the daytime, on the way or somewhere, except that the Holy Prophet (PBUH) taught me reading it as well as its Ta’wil. Ibn al-Kawwa’ asked: O Amir al-Mu’minin! What do you say about the verses revealed to the Holy Prophet (PBUH) when you were not present? The Imam(AS) replied: When I was not present, the Holy Prophet used to memorize the verses revealed to him so that when I took audience with him the Prophet would teach me its reading and would say: O Ali(AS)! After you left, Allah revealed these verses to me and their Ta’wil is so and so. Thus he would teach me on their Revelation (Tanzil) and Ta’wil. Imam al-Baqir (AS): Nobody but successors can claim that he knows the Holy Qur’an completely, neither the exterior nor the interior.
Abu al-Sabbah: I swear by Allah, Imam Jafar al-Sadiq (AS) told me: Allah taught the Revelation and Ta’wil to His Holy messenger (PBUH) and the Holy Prophet (PBUH) taught it to Ali(AS) and he, I swear by Allah, taught it to us.
Allah’s Grand Name
Imam al-Baqir (AS): Allah’s grand name has seventy three letters and Asif only know one of out those letters so that when he uttered it the earth devoured what was between him and the throne of Bilqis (Queen of Sheba) and Asif was able to take the throne with his hand; then in less than a blink of an eye the earth turned back into its former shape. And seventy two letters of the grand name are with us and one secret letter is with Allah the Almighty which He has by His prescience dedicated to Himself; and there is no power and might except with the Exalted and Almighty Allah.