Sahih al-Bukhari (صحيح البخاري), as it is commonly referred to, is one of the six canonical hadith collections of Islam. These prophetic traditions, or hadith, were collected by the Persian Muslim scholar Muhammad ibn Ismail al-Bukhari, after being transmitted orally for generations. Sunni Muslims view this as one of the three most trusted collections of hadith along with Sahih Muslim and al-Muwatta. In some circles, it is considered the most authentic book after the Qur'an. The Arabic word sahih translates as authentic or correct.
The actual title of the book commonly referred to as Sahih al-Bukhari, according to Ibn al-Salah, is: al-Jaami’ al-Sahih al-Musnad al-Mukhtasar min Umur Rasool Allah wa sunanihi wa Ayyamihi. A word for word translation is: The Abridged Collection of Authentic Hadith with Connected Chains regarding Matters Pertaining to the Prophet, His practices and His Times. Ibn Hajar al-Asqalani mentioned the same title replacing the word umur, matters, with hadith.