[Machine] I met Zaid bin Arqam and asked him, "How many battles did the Messenger of Allah ﷺ participate in?" He replied, "Nineteen." I then asked him, "How many battles did you participate in with him?" He replied, "Seventeen battles." I asked further, "Which was the first battle the Prophet ﷺ fought?" He replied, "The Battle of 'Ushayrah."
لَقِيتُ زَيْدَ بْنَ أَرْقَمَ فَقُلْتُ كَمْ غَزَا رَسُولُ اللهِ ﷺ؟ قَالَ تِسْعَ عَشْرَةَ قُلْتُ كَمْ غَزَوْتَ أَنْتَ مَعَهُ؟ قَالَ سَبْعَ عَشْرَةَ غَزْوَةً قَالَ فَقُلْتُ فَمَا أَوَّلُ غَزْوَةٍ غَزَا؟ قَالَ ذَاتُ الْعُشَيْرِ أَوِ الْعُشَيْرَةِ