It has been unanimously agreed that Imam Bukhari's work is the most authentic of all the other works in Hadith literature put together. The authenticity of Al-Bukhari's work is such that the religious learned scholars of Islam said concerning it: 'The most authentic book after the Book of Allah (i.e. Al-Qur'an) is Sahih-Al-Bukhari.'
It Covers almost all aspects of life in providing proper guidance from the messenger of Allah. This 9-Volume Bukhari is the work of over 16 years by Imam Bukhari who before writing any Hadith in this book performed two Rakat prayer of guidance from Allah and when he was sure of the Hadith's authenticity, he wrote it in the book.