you need to study the history of Hadith , you cannot expect Bukhari and Muslim to gather 600,000 Hadiths out of nothing and write it down, they needed to start investigating on what they already have, Bukhari and Muslim among other scholars back Then like Abu Dawood and others played a huge Rule to categorize Hadiths , but that certainly doesn't mean they searched for people and wrote down whatever people told them they heard, as The process of recording the Hadiths of Mohammed (PBUH), went through several stages, starting from the era of the Companions where some of them wrote what they heard from the Prophet . So, the companions were the first people to write down the Hadeeth, but its likely nothing of what they wrote reached us. During the caliphate of Umar ibn Abdul Azeez he wrote for a group of scholars to collect the Hadeeth of the Prophet , but when they collected the Hadiths they were mixed with the sayings of the Companions and Fatawas of the Followers (generation following the Companions).<quoted text>
Your claim that Mohammad allowed some of his companions to write down hadiths is a fabrication and it examplifies dishonety. What is the source of such information? You keep referring to hadiths as a science knowing full well that it is not. To understand the background on the development of hadith literature, one must sift the history of Islam from 250 years after the lifetime of Mohammad...
The matter remained like that until some scholars suggested collecting the Hadith of the Prophet , in a different manner. Therefore, Ubaydullaah ibn Moosa authored a Musnad (the Chain of narrators), and so did Musaddad AlBasri, Asad ibn Moosa, and Nuaym ibn Hammaad Al-Khuzaai so The method of these Musnads was that the Hadiths of each Companion were grouped separately. Later, scholars of religious sciences followed the same method of those scholars.
Imam Bukhari was the first scholar to collect and investigate to find Sahih Hadiths , as you stated before he found or categorized; I am not sure maybe 4000 or 6000 Authentic (Sahih) Hadiths, that is what he was aiming for and that's why he added the most important Rules like Al Jarh wa Al tadil to the science of Hadith.
the compiling of Hadith was taken through different stages, Allow me my friend to ask you a question, Dont you think that there are Some Hadiths that may make Muslims uncomfortable ?? or somehow embarrassed ?? I am talking about Authentic (Sahih) Hadiths not what was categorized as fabricated, weak or mawdoo.
Don't you think that Muslims when they were in control and strong could Just hide some of these Hadiths or fabricate them into other stories ?? for instance Sunnah or hadiths of Mohammed (PBUH) which state that he Married Zayd's (his ex-adopted son) wife after he made him divorce her , or "christinM" favorite Hadith that states Mohammed thumbed Aisha in the chest, or the Hadith that states Mohammed was a victim of a black magic performed by Jewish lady at the last days of his life, or the Hadith that states Mohammed was afraid the first time he got revelations and thought he was obsessed by some kind of a Demon (Jin)??
Why couldn't they Just hide such Hadiths ???
I think I may answer this question by one word which is "Accuracy", and such Hadiths prove that the message of Islam was preserved perfectly.
I am not saying that these Hadiths or actions of Mohammed are not justified, and with no doubt can be explained easily, the point is if Hadiths were fabricated as you claim, its noway Muslims would like to show their hero and Role model (Mohammed ) as a man who was a victim of a Black magic , we would fabricate another story and make Mohammed die in a battle field instead in Aisha's lap , We would also say Mohammed got revelations since he was a kid, if we wanted to fabricate Hadiths we would change a lot of things.
Think of that Question, and I'll be waiting to hear from you.