Ṣaḥīḥ al-Bukhārī
صَحِيحُ البُخَارِي
Considered to be the most authentic after the Qurʾān. Full name: al-Jāmiʿ al-Musnad al-Ṣaḥīḥ al-Mukhtaṣar min Umūr Rasūlallāh ﷺ wa-Sunnatihī wa-Ayyāmihī (الجامع المسند الصحيح المختصر من أمور رسول الله ﷺ وأيامه) (The Comprehensive Summarized Authentic Chains from the Affairs of the Messenger of Allah ﷺ, his Sunnah, and his Life and Times). Sources: sunnah.com for the Arabic text and English translation. The English translation has been improved by myself and other contributors.
Random ḥadīth in Bukhārī
On the day (of the battle of) Mu'tah, nine swords were broken in my hand, and nothing was left in my hand except a Yemenite sword of mine.
سَمِعْتُ خَالِدَ بْنَ الْوَلِيدِ يَقُولُ لَقَدِ انْقَطَعَتْ فِي يَدِي يَوْمَ مُوتَةَ تِسْعَةُ أَسْيَافٍ فَمَا بَقِيَ فِي يَدِي إِلاَّ صَفِيحَةٌ يَمَانِيَةٌ