Narrated Abu Huraira:
The Prophet (ﷺ) said, "In Paradise there is a tree which is so big that a rider can travel in its shade for one hundred years without passing it; and if you wish, you can recite: 'In shade long extended.' 56.30.
USC-MSA web (English) reference: Vol. 6, Book 60, Hadith 403
Arabic reference: Book 65, Hadith 4881