Hadith 6383 of the book of the merits of the companions by sahih al muslim

Kharasha b. Hurr reported: I was sitting in a circle in the mosque of Medina and there was an old man, quite handsome. He was 'Abdullah b. Salim. He was telling good things to them (to the people sitting in that company). As he stood up (to depart) the people said: He who is desirous of looking at a person from amongst the people of Paradise should see him. I said: By Allah, I will follow him, and would try to know his residence. So I followed him and he walked on until he reached the outskirts of Medina. He then entered his house. I sought permission from him to get in, and he granted me the permission, saying: My nephew, what is the need (that has brought you here)? I said to him: As you stood up, I heard people say about you: He who is desirous of seeing a person from among the people of Paradise should look at him. So I became desirous of accompanying you. He ('Abdullah b. Salim) said: It is Allah Who knows best about the people of Paradise. I would, however, narrate to you as to why they said like it. (The story is) that while I was asleep (one night) there came to me a person (in the dream) who asked me to stand up. (So I stood up) and he caught hold of my hand and I walked along with him, and, lo, I found some paths on my left and I was about to set out upon them. Thereupon he said to me Do not set yourself on (them) for these are the paths of the leftists (denizens of Hell-fire). Then there were paths leading to the right side, whereupon he said: Set yourself on these paths. We came across a hill and he said to me: Climb up, and I attempted to climb up that I fell upon my buttocks. I made several attempts (but failed to succeed). He led until he came to a pillar (so high) that its upper end touched the sky and its base was in the earth. And there was a handhold at its upper end. He said to me Climb over it. I said: How can I climb upon it, as its upper end touches the sky? He cought hold of my hand and pushed me up and I found myself suspended with the handhold. He then struck the pillar and it fell down, but I remained attached to that handhold until it was morning (and the dream was thus over). I came to Allah's Apostle ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) and narrated it to him. He said: So far as the paths which you saw on your left are concerned, these are paths of the leftists (denizens of Hell) and the paths which you saw on your right, these are the paths of the rightists (the dwellers of Paradise) and the mountain represents the destination of the martyrs which you would not be able to attain. The pillar implies the pillar of Islam. and so far as the handhold is concerned, it implies the handhold of Islam, and you would hold to it fastly until you would meet death.