Sahih al-Bukhari 4802

Arabic

حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا الأَعْمَشُ، عَنْ إِبْرَاهِيمَ التَّيْمِيِّ، عَنْ أَبِيهِ، عَنْ أَبِي ذَرٍّ ـ رضى الله عنه ـ قَالَ كُنْتُ مَعَ النَّبِيِّ صلى الله عليه وسلم فِي الْمَسْجِدِ عِنْدَ غُرُوبِ الشَّمْسِ فَقَالَ ‏"‏ يَا أَبَا ذَرٍّ أَتَدْرِي أَيْنَ تَغْرُبُ الشَّمْسُ ‏"‏‏.‏ قُلْتُ اللَّهُ وَرَسُولُهُ أَعْلَمُ‏.‏ قَالَ ‏"‏ فَإِنَّهَا تَذْهَبُ حَتَّى تَسْجُدَ تَحْتَ الْعَرْشِ، فَذَلِكَ قَوْلُهُ تَعَالَى ‏{‏وَالشَّمْسُ تَجْرِي لِمُسْتَقَرٍّ لَهَا ذَلِكَ تَقْدِيرُ الْعَزِيزِ الْعَلِيمِ‏}‏‏"‏

English translation

Narrated Abu Dharr:Once I was with the Prophet (ﷺ) in the mosque at the time of sunset. The Prophet (ﷺ) said, "O Abu Dharr! Do you know where the sun sets?" I replied, "Allah and His Apostle know best." He said, "It goes and prostrates underneath (Allah's) Throne; and that is Allah's Statement:-- 'And the sun runs on its fixed course for a term (decreed). And that is the decree of All-Mighty, the All-Knowing

Reference: Sahih al-Bukhari 4802, Book of Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)). English translation by Dr. Muhammad Muhsin Khan.