Jami` at-Tirmidhi 896
جامع الترمذي#896Sahihحَدَّثَنَا مَحْمُودُ بْنُ غَيْلاَنَ، حَدَّثَنَا أَبُو دَاوُدَ، قَالَ أَنْبَأَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ عَمْرَو بْنَ مَيْمُونٍ، يُحَدِّثُ يَقُولُ كُنَّا وُقُوفًا بِجَمْعٍ فَقَالَ عُمَرُ بْنُ الْخَطَّابِ إِنَّ الْمُشْرِكِينَ كَانُوا لاَ يُفِيضُونَ حَتَّى تَطْلُعَ الشَّمْسُ وَكَانُوا يَقُولُونَ أَشْرِقْ ثَبِيرُ . وَإِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم خَالَفَهُمْ . فَأَفَاضَ عُمَرُ قَبْلَ طُلُوعِ الشَّمْسِ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Amr bin Maimun narrated:"We were halted at Jama when Umar bin Al-Khattab said: 'The idolaters would not depart until the sun had risen and they would say: "Let the sun shine on Thabir" and indeed the Messenger of Allah contradicted them.' So Umar departed before the rising of the sun
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 9:89