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....' (36.38)  

كُنْتُ مَعَ النَّبِيِّ ﷺ 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}  

The Prophet ﷺ asked me at sunset, "Do you know where the sun goes (at the time of sunset)?" I replied, "Allah and His Apostle know better." He said, "It goes (i.e. travels) till it prostrates Itself underneath the Throne and takes the permission to rise again, and it is permitted and then (a time will come when) it will be about to prostrate itself but its prostration will not be accepted, and it will ask permission to go on its course but it will not be permitted, but it will be ordered to return whence it has come and so it will rise in the west. And that is the interpretation of the Statement of Allah: "And the sun Runs its fixed course For a term (decreed). that is The Decree of (Allah) The Exalted in Might, The All- Knowing." (36.38)  

قَالَ النَّبِيُّ ﷺ لأَبِي ذَرٍّ حِينَ غَرَبَتِ الشَّمْسُ تَدْرِي أَيْنَ تَذْهَبُ قُلْتُ اللَّهُ وَرَسُولُهُ أَعْلَمُ قَالَ فَإِنَّهَا تَذْهَبُ حَتَّى تَسْجُدَ تَحْتَ الْعَرْشِ فَتَسْتَأْذِنَ فَيُؤْذَنَ لَهَا وَيُوشِكُ أَنْ تَسْجُدَ فَلاَ يُقْبَلَ مِنْهَا وَتَسْتَأْذِنَ فَلاَ يُؤْذَنَ لَهَا يُقَالُ لَهَا ارْجِعِي مِنْ حَيْثُ جِئْتِ فَتَطْلُعُ مِنْ مَغْرِبِهَا فَذَلِكَ قَوْلُهُ تَعَالَى {وَالشَّمْسُ تَجْرِي لِمُسْتَقَرٍّ لَهَا ذَلِكَ تَقْدِيرُ الْعَزِيزِ الْعَلِيمِ }  

[Machine] Abu Dharr and I were with the Messenger of Allah ﷺ in the mosque when the sun began to set. He asked Abu Dharr, "Where does the sun go?" I replied, "Allah and His Messenger know best." He said, "Verily, it continues on its path until it prostrates beneath the throne of its Lord. Then, it seeks permission and is allowed to rise again. It is as if it is commanded to return to where it came from, and so it rises from its place. And that is its appointed resting place." Muhammad ﷺ then recited the verse: "And the sun runs [on course] toward its stopping point. That is the determination of the Exalted in Might, the Knowing." (Quran 36:38)  

أَبُو ذَرٍّ بَيْنَمَا أَنَا مَعَ رَسُولِ اللهِ ﷺ فِي الْمَسْجِدِ حِينَ وَجَبَتِ الشَّمْسُ قَالَ يَا أَبَا ذَرٍّ أَيْنَ تَذْهَبُ الشَّمْسُ؟ قُلْتُ اللهُ وَرَسُولُهُ أَعْلَمُ قَالَ فَإِنَّهَا تَذْهَبُ حَتَّى تَسْجُدَ بَيْنَ يَدَيْ رَبِّهَا ﷻ ثُمَّ تَسْتَأْذِنُ فَيُؤْذَنُ لَهَا وَكَأَنَّهَا قَدْ قِيلَ لَهَا ارْجِعِي مِنْ حَيْثُ جِئْتِ فَتَطْلُعُ مِنْ مَكَانِهَا وَذَلِكَ مُسْتَقَرٌّ لَهَا قَالَ مُحَمَّدٌ ثُمَّ قَرَأَ {وَالشَّمْسُ تَجْرِي لِمُسْتَقَرٍّ لَهَا} [يس 38]  

[Machine] I was with the Messenger of Allah ﷺ in the mosque when the sun set. He said, "O Abu Dharr, do you know where the sun goes?" I said, "Allah and His Messenger know best." He said, "Indeed, it goes until it prostrates beneath the Throne of its Lord, then seeks permission to return, and permission is granted to it. It is as if it has been said to it, 'Go back to where you came from,' and so it returns to its rising place. That is its resting place." Then he recited, "And the sun runs [on course] toward its stopping point." (Surah Ya-Sin 36:38)  

كُنْتُ مَعَ رَسُولِ اللهِ ﷺ فِي الْمَسْجِدِ حِينَ وَجَبَتِ الشَّمْسُ فَقَالَ يَا أَبَا ذَرٍّ تَدْرِي أَيْنَ تَذْهَبُ الشَّمْسُ؟ قُلْتُ اللهُ وَرَسُولُهُ أَعْلَمُ قَالَ فَإِنَّهَا تَذْهَبُ حَتَّى تَسْجُدَ بَيْنَ يَدَيْ رَبِّهَا فَتَسْتَأْذِنَ فِي الرُّجُوعِ فَيُؤْذَنَ لَهَا وَكَأَنَّهَا قَدْ قِيلَ لَهَا ارْجِعِي مِنْ حَيْثُ جِئْتِ فَتَرْجِعَ إِلَى مَطْلَعِهَا فَذَلِكَ مُسْتَقَرُّهَا ثُمَّ قَرَأَ {وَالشَّمْسُ تَجْرِي لِمُسْتَقَرٍّ لَهَا} [يس 38]  

[Machine] I was with the Messenger of Allah ﷺ in the mosque at sunset when he said, "Do you know where the sun sets?" I said, "Allah and His Messenger know best." He said, "It goes and prostrates beneath the Throne of its Lord, and seeks permission to rise again. It will be granted permission and soon it will seek permission, but it will not be granted. It will intercede and request, but when that happens, it will be said to it, 'Return to your place.' That is the meaning of the verse: 'And the sun runs [on course] toward its stopping point.' [Quran 36:38]"  

كُنْتُ مَعَ رَسُولِ اللهِ ﷺ فِي الْمَسْجِدِ عِنْدَ مَغْرِبِ الشَّمْسِ فَقَالَ «أَتَدْرُونَ أَيْنَ تَغْرُبُ الشَّمْسُ؟» قُلْتُ اللهُ وَرَسُولُهُ أَعْلَمُ قَالَ تَذْهَبُ حَتَّى تَنْتَهِيَ تَحْتَ الْعَرْشِ عِنْدَ رَبِّهَا ثُمَّ تَسْتَأْذِنُ فَيُؤْذَنُ لَهَا وَيُوشِكُ أَنْ تَسْتَأْذِنَ فَلَا يُؤْذَنَ لَهَا وَتَسْتَشْفِعُ وَتَطْلُبُ فَإِذَا قَالَ ذَلِكَ قِيلَ اطْلُعِي مِنْ مَكَانِكِ فَذَلِكَ قَوْلُهُ {وَالشَّمْسُ تَجْرِي لِمُسْتَقَرٍّ لَهَا} [يس 38]  

"تدرى أين تذهب؟ (قال: قلت: الله ورسوله أعلم, قال: ) فإنها تذهب حتى تسجد تحت العرش, فتستأذن فيؤذن لها, ويوشك أن تسجد فلا يقبل منها, وتستأذن فلا يؤذن لها (يقال لها): ارجعى من حيث جئت فتطلع من مغربها فذلك قوله تعالى: {وَالشَّمْسُ تَجْرِي لِمُسْتَقَرٍّ لَهَا} ".