One day Imam Musa bin Ja’far (a.s.)
explained to a pious worshipper position of Wilayat and Caliphate of Ameerul Momineen (a.s.) and his purified descendants, till the
mention of their names reached himself and His Eminence fell silent.
That man asked: “May I be sacrificed on you, who is the Divine
Proof and Imam on the creatures today?” He replied: “Would you
accept, if I tell you?” He asked: “Yes, I would definitely accept.” His
Eminence said: “I am the proof of God and the true Imam.”
He asked: “May I be sacrificed on you, give me the proof and
evidence of your statement.”
His Eminence replied:
“Go to that tree and say: Musa bin Ja’far commands
you: Come to me.”
He went and mentioned this. The tree came and stood up near
them. His Eminence gestured to it to return and it returned. That
pious man also confessed to the Imamate of His Eminence
Behaarul Anwaar, vol. 48, p. 52
Isbaatul Wilayah (Part One) – Ayatullah AliNamazi Shahroodi (r.a.)