THE İMPORTANT POİNT İN CHAPTER 65 OF THE BOOK AL HAFT AL SHAREEF

[Muhammed Emin]

Bismillahir Rahmanir Rahim.
Allahumma salli ala Muhammed wa Alee Muhammed al Aimma wal Mahdiyyin wa sallim taslima.
Assalamun Aleykum wr wb, Dear Mawla. İnshaAllah by your grace ,please clarify these matters to us, Ya Aba Sadiq (pbuy).

Question:

Chapter 65 of the book Al Haft Al Shareef deals with a person from the sons of Imam al Hussein (a.s) who will come out from the banks of the Tigris river in the city of Basra.

And it is said about him that:

"He stays in it however Allah wills then its inhabitants pledge their allegiance to him in hate without obedience and they give him the Tenth. So if he is assured and grasps, they betray him and break into his house at night and kill his companions and raid their homes. And he rids himself and flees from his companions and its inhabitants and goes out escaping from it. And his companions Bani Mardas raise one of their heads on a channel and claim that they killed him. And if you see a fourth of his head on a couch/bed or with hands then do not believe in his
killing, for he left escaping from it by Allah. And he is delivered with his head and he goes until he reaches Yemen, and the people gather to him from the tribes of the Arabs and the devoted are peoples that are great in character".

Is this narration related to Imam Ahmad al-Hasan (a)? And if so, will there ever be a time when people will be confused by the apparent killing of the Imam (as)? Will what happened to Jesus (pbuh) in his time happen to the Imam (pbuh)?