Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا حَمَّادُ بْنُ مَسْعَدَةَ، عَنْ يَزِيدَ بْنِ أَبِي عُبَيْدٍ، عَنْ سَلَمَةَ بْنِ الأَكْوَعِ، قَالَ غَزَوْتُ مَعَ النَّبِيِّ صلى الله عليه وسلم سَبْعَ غَزَوَاتٍ. فَذَكَرَ خَيْبَرَ وَالْحُدَيْبِيَةَ وَيَوْمَ حُنَيْنٍ وَيَوْمَ الْقَرَدِ. قَالَ يَزِيدُ وَنَسِيتُ بَقِيَّتَهُمْ.Narrated Yazid bin Abi Ubaid:Salama bin Al-Akwa` said, "I fought in seven Ghazwat along with the Prophet." He then mentioned Khaibar, Al-Hudaibiya, the day (i.e. battle) of Hunain and the day of Al-Qarad. I forgot the names of the other Ghazwat
From Sahih al-Bukhari, whose reports the scholars accept as authentic.