Process Of Classification And Authentication Of Hadith
pls. see this Discussion 1042 • Reply 1042
So in the book I referred, its written that Hazrat Abu hurraira, Hazrat Ali, Hazrat Abdullah bin Amar etc are the first one to write hadiths. Hazrat Umar was not in favor of writing hadith and he forbade others to do so. According to Ghamidi Sb, they were very careful about narrating it. So far I am unable to find a summaraized version. If I find I will share it.