Sahih al-Bukhari, Volume 8, Book 76, Hadith 559 (USC-MSA) ⓘ
Narrated Sahl bin Sa'd: Allah's Messenger 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."
وَقَالَ إِسْحَاقُ بْنُ إِبْرَاهِيمَ أَخْبَرَنَا الْمُغِيرَةُ بْنُ سَلَمَةَ، حَدَّثَنَا وُهَيْبٌ، عَنْ أَبِي حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ " إِنَّ فِي الْجَنَّةِ لَشَجَرَةً يَسِيرُ الرَّاكِبُ فِي ظِلِّهَا مِائَةَ عَامٍ، لاَ يَقْطَعُهَا " .
also referenced under: Book 81, Hadith 141 (In-Book) & Hadith 6552 (DarusSalam)
Narrated Abu Sa'id: The Prophet said: There is a tree in Paradise (so huge) that a fast (or a trained) rider may travel: for one hundred years without being able to cross it.
قَالَ أَبُو حَازِمٍ فَحَدَّثْتُ بِهِ النُّعْمَانَ بْنَ أَبِي عَيَّاشٍ، فَقَالَ حَدَّثَنِي أَبُو سَعِيدٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِنَّ فِي الْجَنَّةِ لَشَجَرَةً يَسِيرُ الرَّاكِبُ الْجَوَادَ الْمُضَمَّرَ السَّرِيعَ مِائَةَ عَامٍ، مَا يَقْطَعُهَا " .
also referenced under: Book 81, Hadith 142 (In-Book) & Hadith 6553 (DarusSalam)