Sahih al-Bukhari 4881
Sahih al-Bukhari · Book 65: Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)) · The Statement of Allah the Exalted: "And in shade long extended." (V.56:30)
Narrated Abu Huraira:
حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ ، حَدَّثَنَا سُفْيَانُ ، عَنْ أَبِي الزِّنَادِ ، عَنِ الأَعْرَجِ ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ يَبْلُغُ بِهِ النَّبِيَّ صلى الله عليه وسلم قَالَ " إِنَّ فِي الْجَنَّةِ شَجَرَةً يَسِيرُ الرَّاكِبُ فِي ظِلِّهَا مِائَةَ عَامٍ لاَ يَقْطَعُهَا، وَاقْرَءُوا إِنْ شِئْتُمْ {وَظِلٍّ مَمْدُودٍ} " .
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.