In this article, the author discusses the definition of hadith science, the history of its emergence, the period of writing hadiths, and the schools of hadith science. In particular, he spoke about the influx of hadith science into Movarounnahr and the early schools of hadith there and the hadith scholars who contributed to the development of hadith science in Movarounnahr. Imam Bukhari, who received the title of "Commander of the Faithful" in the science of hadith, and Imam Termezi, who is known among hadith scholars for his memorization and memory, and his mastery of the subtleties of the science of hadith, were born in the land of Movarounnahr.