Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
حَدَّثَنِي مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا يَحْيَى، عَنْ إِسْمَاعِيلَ، قَالَ حَدَّثَنِي قَيْسٌ، قَالَ سَمِعْتُ خَالِدَ بْنَ الْوَلِيدِ، يَقُولُ لَقَدْ دُقَّ فِي يَدِي يَوْمَ مُوتَةَ تِسْعَةُ أَسْيَافٍ، وَصَبَرَتْ فِي يَدِي صَفِيحَةٌ لِي يَمَانِيَةٌ.Narrated Khalid bin Al-Walid:On the day of Mu'tah, nine swords were broken in my hand and only a Yemenite sword of mine remained in my hand
From Sahih al-Bukhari, whose reports the scholars accept as authentic.