Aban narrates from Sulaym who said: “I was sitting with Ali (AS) in the mosque in Kufa and people had gathered around him. He said: “Ask me questions before you do not have me. Ask me regarding the Book of Allah. By God, there is no verse in the Book of Allah revealed but the Holy Prophet
(SAW) made me recite it and also taught me the hidden meaning of it.”
At that time ibn Kawwaa asked: “So what about when the verses were revealed when you were not present?”
Alayhissalam replied: “Yes, when I was absent he remembered it for me and when I went to him he used to tell me: “O Ali after you, Allah revealed such and such verse.” He recited them and explained the meaning and made me recite them.”