Sahih Muslim , Book 21, Hadith 4802 (USC-MSA) ⓘ
This hadith has been narrated on the authority of Abu Ya'fur with the same chain of transmitters. Abu Bakr (one of the narrators) said" seven expeditions," whereas Ishaq said" six," and Ibn Umar said" six" or" seven".
وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَابْنُ أَبِي عُمَرَ، جَمِيعًا عَنِ ابْنِ عُيَيْنَةَ، عَنْ أَبِي يَعْفُورٍ، بِهَذَا الإِسْنَادِ . قَالَ أَبُو بَكْرٍ فِي رِوَايَتِهِ سَبْعَ غَزَوَاتٍ وَقَالَ إِسْحَاقُ سِتَّ وَقَالَ ابْنُ أَبِي عُمَرَ سِتَّ أَوْ سَبْعَ .
also referenced under: Book 34, Hadith 75 (In-Book) & Hadith 1952 (Reference)