(51) باب صِفَةِ الْجَنَّةِ وَالنَّارِ
Narrated Sahl bin Sa'd:
Allah's Messenger (ﷺ) said, "In Paradise there is a tree so big that in its shade a rider may travel for one hundred years without being able to cross it."
Reference: Sahih al-Bukhari 6552
In-book reference: Book 81, Hadith 141
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 559