Sunnah. The reports of the Prophet's (saw) sayings and deeds are called ahadeeth. Imam Bukhari
lived a couple of centuries after the Prophet's (saw) death and worked extremely hard to collect
his ahadeeth. 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).
Bukhari (full name Abu Abdullah Muhammad bin Ismail bin Ibrahim bin al-Mughira al-Ja'fai) was
born in 194 A.H. and died in 256 A.H. His collection of hadeeth is considered second to none. He
spent sixteen years compiling it, and ended up with 2,602 hadeeth (9,082 with repetition). His
criteria for acceptance into the collection were amongst the most stringent of all the scholars
Sahih Bukhari is divided into nine volumes, each of which has several books. Each book contains
many ahadeeth. The ahadeeth are numbered consecutively per volume. The books really only serve
to group ahadeeth together, but the volumes impose the numbering.