Musnad Ahmad 1256
It was narrated that `Amr bin Sufyan said:
A man gave a speech when ‘Ali (رضي الله عنه) prevailed on the day of Basrah, and ‘Ali said: This speaker does not know what he is talking about. The Messenger of Allah (ﷺ) came first, Abu Bakr came second and `Umar came third. Then we got involved in turmoil after they were gone, and Allah will judge concerning it as He wills.
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا شَرِيكٌ، عَنِ الْأَسْوَدِ بْنِ قَيْسٍ، عَنْ عَمْرِو بْنِ سُفْيَانَ، قَالَ خَطَبَ رَجُلٌ يَوْمَ الْبَصْرَةِ حِينَ ظَهَرَ عَلِيٌّ رَضِيَ اللَّهُ عَنْهُ فَقَالَ عَلِيٌّ هَذَا الْخَطِيبُ الشَّحْشَحُ سَبَقَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَصَلَّى أَبُو بَكْرٍ وَثَلَّثَ عُمَرُ ثُمَّ خَبَطَتْنَا فِتْنَةٌ بَعْدَهُمْ يَصْنَعُ اللَّهُ فِيهَا مَا شَاءَ‏.‏