Bukhari's Sifting: 600,000 Hadiths Down to 7,400 — What Do the Numbers Mean?

Sixteen Years and a Prayer Before Every Entry

In Nishapur, in the early third century of Islam, the hadith master Ishaq ibn Rahawayh said aloud to his circle of students: "If only you would compile a concise book of the authentic Sunnah of the Messenger of Allah." One young man in that circle later recalled: "That fell into my heart." His name was Muhammad ibn Isma'il al-Bukhari (194–256 AH / 810–870 CE). By his own account, he then spent sixteen years sifting a mass of roughly six hundred thousand hadiths. The book he finished — al-Jami' al-Sahih, known to the world as Sahih al-Bukhari — contains, counted with repetitions, around 7,400 entries; counted without repetition, 2,602. That is an exclusion rate of more than ninety-eight percent. And al-Bukhari never wrote down the rules he used. The book has no preface, no stated conditions, no chapter on method. For centuries scholars have worked backwards from the book itself to reconstruct his criteria — the most famous reconstruction being Hady al-Sari, the massive introduction that Ibn Hajar al-Asqalani (d. 852 AH) wrote to his commentary Fath al-Bari, six centuries after Bukhari's death. What do the numbers mean? Both columns of the dispute are laid out below.

This article does not mock any religion. It will do what we always do: open the books, present the texts exactly as they are, and ask three questions — what did Bukhari himself say about the numbers, what do critics find difficult in them, and how has the tradition answered? Both sides are quoted as-is. The verdict, as always, is yours.