People of our area have narrated from Muhyuddin Arbili.
He says that once he came to his father accompanied by another personand as they sat there, that person dozed and the turban fell down from hishead and they noticed a deep wound on his head.
My father asked: “How and when did you receive this injury?” He replied: “It was in Siffeen.”
He was asked: “How is that possible, the Battle of Siffeen occurred along time ago?”
He said: “Listen, once I was traveling to Egypt when a person from Gaza also accompanied me. On the way mention was made about the Battle of Siffeen. He said: If I had been present in the Battle of Siffeen I would have
quenched the thirst of this sword of mine with the blood of Ali and hisfollowers.”
I said: “And if I had been present in the Battle of Siffeen, I would havequenched the thirst of this sword of mine with the blood of Muawiyah and his men. Since they are not present here, I and you represent both the parties. Let us fight and see who wins.
We stared a duel and I was hurt by his sword and fell down in a swoon.
I was lying in that condition when someone came and awakened me withthe point of his spear. When I opened my eyes, he alighted from his mount.When he passed his hand over my wound, it was instantly cured. Then he told me to wait there.
He returned after sometime with the severed head and horse of myopponent.
He said: “Take the severed head of your enemy. Since you helped us, wealso helped you and the Almighty Allah indeed helps those who help Him.”
I asked: “Who are you?”
He replied: “I am so-and-so, that is the Master of the Affair (SahibulAmr).”
Then he said: “If someone asks you where you got this wound from, youshould say that you were injured in the Battle of Siffeen.”
Reference : Beharul anwar vol 51.52.53 , Part 1 , The Promised Mahdi