I asked him, "How many military expeditions did the Prophet ﷺ undertake?"He replied, "Nineteen."I asked, "How many of them did you accompany him on?"He said, "Seventeen."I asked, "Which one was the first?"He answered, "Dhat al-Ushayr," or "al-Ushayrah."
حدثنا محمود بن غيلان حدثنا وهب بن جرير وأبو داود الطيالسي قالا حدثنا شعبة عن أبي إسحق قال كنت إلى
له كم غزا النبي ﷺ من غزوة قال تسع عشرة فقلت كم غزوت أنت معه قال سبع عشرة قلت أيتهن كان أول قال ذات العشير أو العشيرة
Agreed upon (muttafaq alayh). Bukhari reported it in the Book of Military Expeditions, chapter on the expedition of Ushayra or Usayra, hadith 3949, from the hadith of Wahb bin Jareer, and Muslim reported it in the Book of Jihad, chapter on the number of the Prophet's military expeditions, hadith 43/1254 before hadith 1813, from the hadith of Shubah, with this wording. It is also found in Musnad Tayalisi, hadith 681, 682, 684.