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