Jami` at-Tirmidhi Book 47, Hadith 345
“Indeed in Paradise there is a tree under whose shade a rider can travel for one hundred years without stopping. Recite if you wish: And in shave extended. And water flowing constantly.”
“Allah said: ‘I have prepared for My righteous worshippers, what no eye has seen, nor ear has hear, and no human heart has conceived.’ So recite if you wish: No person knows what is kept hidden for them of delights of the eyes as a reward for what they used to do. And in Paradise there is a tree under whose shade a rider can travel for one hundred years without stopping. Recite if you wish: And in shade extended. And the space occupied by a whip in Paradise is better than the world and whatever is in it. Recite if you wish: And whoever is removed away from the Fire and admitted to Paradise, he indeed is successful. The life of this world is only the enjoyment of deception.”
from the Prophet – regarding Allah’s saying ‘And on couches raised high – he said: “Their height is as what is between the heavens and the earth, and the distance between the two of them is five hundred years.”