The Arabs in the pre-Islamic period did not return from al-Muzdalifah till they saw sunlight at the mountain Thabir. The Prophet ﷺ opposed them and returned before the sunrise.
عُمَرُ بْنُ الْخَطَّابِ كَانَ أَهْلُ الْجَاهِلِيَّةِ لاَ يُفِيضُونَ حَتَّى يَرَوُا الشَّمْسَ عَلَى ثَبِيرٍ فَخَالَفَهُمُ النَّبِيُّ ﷺ فَدَفَعَ قَبْلَ طُلُوعِ الشَّمْسِ
l heard ʿUmar bin al Khattab say: The people of Jahiliyyah used not to move on from Jamʿ until they saw the sun shining on (the mountain of) Thabeer, and they would say: Shine Thabeer, then we will move on swiftly. So the Messenger of Allah ﷺ moved on before the sun rose.
قَالَسَمِعْتُ عُمَرَ بْنَ الْخَطَّابِ يَقُولُ كَانَ أَهْلُ الْجَاهِلِيَّةِ لَا يُفِيضُونَ مِنْ جَمْعٍ حَتَّى يَرَوْا الشَّمْسَ عَلَى ثَبِيرٍ وَكَانُوا يَقُولُونَ أَشْرِقْ ثَبِيرُ كَيْمَا نُغِيرُ فَأَفَاضَ رَسُولُ اللهِ ﷺ قَبْلَ طُلُوعِ الشَّمْسِ
The Arabs in the pre-Islamic period did not return from al-Muzdalifah till they saw sunlight at the mountain Thabir. The Prophet ﷺ opposed them and returned before the sunrise. (Using translation from Abū Dāʾūd 1938)
عُمَرُ بْنُ الْخَطَّابِ ؓ «كَانَ أَهْلُ الْجَاهِلِيَّةِ لَا يُفِيضُونَ حَتَّى يَرَوَا الشَّمْسَ عَلَى ثَبِيرٍ فَخَالَفَهُمُ النَّبِيُّ ﷺ فَدَفَعَ قَبْلَ طُلُوعِ الشَّمْسِ»