Ghaibat Tusi: It is narrated from Ahmad bin Ali Raazi from Abu ZarAhmad bin Abi Surah, same is reported by Muhammad bin Hasan bin AbdullahTamimi and he was a Zaidiyyah; that he said:
“Once I went to Heer and saw a handsome youth praying there. After that the two of us reached Mashra. He asked: O Abu Surah, where are you headed?”
I said: To Kufa.
He asked: But with whom? I said: With other people.
He said: No, you will travel with us.
I asked: What do you mean: ‘with us’? He replied: With me.
Thus the two of us set out from there and when we reached the graveyard of Masjid Sahla, he said: That is your destination, if you want you may proceed.
He also said: You should go to Ibne Raazi Ali bin Yahya, who will give to you some money which is with him.
I asked: Why would he give me anything?
He replied: You mention the amount, where it is placed and with which it is covered.
So I asked: Who are you?
He replied: I am Muhammad bin Hasan Askari.
I asked: What if refuses to give me anything in spite of the signs? He said: I am behind you.
Ibne Abi Surah says: When I went to Ibne Raazi and mentioned thesigns, he gave that amount to me. I told him that he had said that he wasbehind me.
Ibne Raazi: After this sign there is no need of any verification as otherthan the Almighty Allah no one had any knowledge of it.
Reference : Beharul anwar vol 51.52.53 , Part 1 , The Promised Mahdi