(4) باب فَضْلِ أَبِي بَكْرٍ بَعْدَ النَّبِيِّ صلى الله عليه وسلم
Narrated Ibn `Umar:
We used to compare the people as to who was better during the lifetime of Allah's Messenger (ﷺ) . We used to regard Abu Bakr as the best, then `Umar, and then `Uthman .
Reference: Sahih al-Bukhari 3655
In-book reference: Book 62, Hadith 7
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 57, Hadith 7