(37) باب فَضْلِ صَلاَتَىِ الصُّبْحِ وَالْعَصْرِ وَالْمُحَافَظَةِ عَلَيْهِمَا
This hadith has been narrated by the same chain of transmitters by Hammam, and said about Abu Bakr that he was Ibn Abu Musa.
Reference: Sahih Muslim 635 b
In-book reference: Book 5, Hadith 275
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1327