6.88 . Such is the guidance of Allah wherewith He guideth whom He will of His bondmen . But if they had set up ( for worship ) aught beside Him , ( all ) that they did would have been vain .
Translation of Sahih Bukhari: Translator: M. Muhsin Khan
Sahih Bukhari is a collection of sayings and deeds of Prophet Muhammad (pbuh),
also known as the sunnah. The reports of the Prophet's sayings and deeds are called ahadith.
Bukhari lived a couple of centuries after the Prophet's death and worked extremely hard to collect his ahadith.
Each report in his collection was checked for compatibility with the Qur'an, and the veracity of the chain of reporters had to be painstakingly established.
Bukhari's collection is recognized by the overwhelming majority of the Muslim world to be one of the most authentic collections of the Sunnah of the Prophet (pbuh).