Tradition 22

Along with Jibra'il, we entered into Bait al‑Ma'mur. A group of my friends were with me all of whom were wearing new clothing. Others from amongst them were wearing old clothing, and when they tried to enter this area, they were prevented. Only those who were wearing new clothing were permitted to enter with me into Bait al‑Ma'mur. In this place, I performed a two Rak'at Salat, and then left.

Two rivers passed by me ‑ one was al‑Kawthar and the other was the river of Mercy. I drank from the river of al‑Kawthar and performed a Ghusl with the river of Mercy. I was then guided to enter into Paradise. In one area of Paradise, I saw my house and that of my wife. The ground and the dirt of Paradise had the smell of Musk and Amber. In the rivers of Paradise, I saw a servant of Allah who was bathing. I asked her, "O' servant! Who are you for?" She replied to me, "I am (here) for Zaid ibn Harith." When I saw Zaid (after this event), I gave him the good tidings of this.

"The birds of Paradise were as the camels of Khurasan (in size). The pomegranates that were hanging on the trees were so large and glowing and incomparable to anything else. It was here that I saw a huge tree such that if a bird were to fly around it for seven hundred years, he would still not be able to go around the entire tree. In Paradise, there is not a single house in which one of the branches of this tree does not cover. I asked Jibra'il regarding this tree an he told me, "This is the tree of Tuba about which, Allah has said in the Qur'an:

"...Tuba shall be theirs and a goodly return. " [11]

Thus this tree of Tuba is in Paradise and all of the houses in there are under (the shade) of this tree.

I asked Jibra'il concerning all the wonderful things that we had witnessed including the rivers, and those things which frightened me, and he replied, "These are all various levels of veils which are placed between Allah  the High and His creations. If these curtains were not there, then the Throne of Allah would have been visible however, it is not possible for any of His creations to see His Light (Nur).'"

[11] Surah al‑Ra'd (13), Verse 29

From Bihar al-Anwar, Vol. 18, p. 327-328, Bab 3 - Ithbaat al-Mi`raaj wa ma`anaahu wa kayfiyyatuhu wa sifatuhu wa ma jaraa feehi wa wasf al-buraaq, Hadith 34.