 This is achieved by 

On the basis of these criteria, various classifications were devised for hadith.The earliest comprehensive work in hadith studies was Abu Muhammad al-Ramahurmuzi's "al-Muhaddith al-Fasil", while another significant work was al-Hakim al-Naysaburi's "Ma‘rifat ‘ulum al-hadith".Ibn al-Salah's "ʻUlum al-hadith" is considered the standard classical reference on hadith studies.