Asbagh bin Nubata (r.a.) was a trusted companion of Ameerul Mumeneen Ali (AS). He went to see Salman Farsi (r.a.) who had settled in Madain. Asbagh (r.a.) says:
“I found him very sick, near his death. He told me: 'O Asbagh, the Messenger of Allah had informed me that, at the time of my death, a dead person would talk to me. Now, put me on a wooden plank and take me to the graveyard. On reaching the grave-yard, Salman faced towards Quibla and in a loud voice saluted the dead. Nobody replied. After saluting them several times without getting any reply, Salman said: “O Inhabitants of these graves, I am Salman, a slave of the Messenger of Allah. The Prophet had told me that at the time of my death a dead person would converse with me. Now, if that time has arrived, then, for the sake of Allah...