Sahih al-Bukhari 4270
In-book no 4270حَدَّثَنَا عَبْدُ اللَّهِ بْنُ رَجَاءٍ، حَدَّثَنَا إِسْرَائِيلُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَأَلْتُ زَيْدَ بْنَ أَرْقَمَ ـ رضى الله عنه ـ كَمْ غَزَوْتَ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ سَبْعَ عَشْرَةَ. قُلْتُ كَمْ غَزَا النَّبِيُّ صلى الله عليه وسلم قَالَ تِسْعَ عَشْرَةَ.
Narrated Abu 'Is-haq: I asked Zaid bin Al-Arqam, "In how many Ghazawat did you take part in the company of Allah's Apostle?" He replied, "Seventeen." I further asked, "How many Ghazawat did the Prophet (ﷺ) fight?" He replied, "Nineteen."