حَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا أَيُّوبُ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ وَلَوْ كُنْتُ مُتَّخِذًا مِنْ أُمَّتِي خَلِيلاً لاَتَّخَذْتُ، أَبَا بَكْرٍ وَلَكِنْ أَخِي وَصَاحِبِي ‏"‏‏.‏
Translation
Narrated Muhammad bin Al-Hanafiya

I asked my father (`Ali bin Abi Talib), "Who are the best people after Allah's Messenger (ﷺ) ?" He said, "Abu Bakr." I asked, "Who then?" He said, "Then `Umar. " I was afraid he would say "Uthman, so I said, "Then you?" He said, "I am only an ordinary person.