Jami` at-Tirmidhi 3682
Narrated Nafi':
from Ibn 'Umar, that the Messenger of Allah ﷺ said: "Indeed Allah has put the truth upon the tongue and in the heard of 'Umar." He said: "And Ibn 'Umar said: 'No affair occurred among the people, except that they said something about it, and 'Umar said something about it'" or he said - "Ibn Al-Khattab" - Kharijah (one of the narrators) had a doubt about it - "except that the Qur'an was revealed in line with what 'Umar had said."
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا أَبُو عَامِرٍ الْعَقَدِيُّ، حَدَّثَنَا خَارِجَةُ بْنُ عَبْدِ اللَّهِ، هُوَ الأَنْصَارِيُّ عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ " إِنَّ اللَّهَ جَعَلَ الْحَقَّ عَلَى لِسَانِ عُمَرَ وَقَلْبِهِ " . وَقَالَ ابْنُ عُمَرَ مَا نَزَلَ بِالنَّاسِ أَمْرٌ قَطُّ فَقَالُوا فِيهِ وَقَالَ فِيهِ عُمَرُ أَوْ قَالَ ابْنُ الْخَطَّابِ فِيهِ شَكَّ خَارِجَةُ إِلاَّ نَزَلَ فِيهِ الْقُرْآنُ عَلَى نَحْوِ مَا قَالَ عُمَرُ .
قَالَ أَبُو عِيسَى وَفِي الْبَابِ عَنِ الْفَضْلِ بْنِ الْعَبَّاسِ وَأَبِي ذَرٍّ وَأَبِي هُرَيْرَةَ وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ . وَخَارِجَةُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ هُوَ ابْنُ سُلَيْمَانَ بْنِ زَيْدِ بْنِ ثَابِتٍ وَهُوَ ثِقَةٌ .