Hatua hii inaanzia takriban mwaka 750 BK hadi mwaka 950 BK, na inahusu kuinuka kwa Nasaba ya ‘Abbaasi iliyoanzishwa na Khalifa Abul-‘Abbaas (utawala 750-754)109, kuimarika kwake na mwanzo wa kudorora kwake. Ilikuwa katika kipindi hiki ndipo Fiqh ilipoanza kujitokeza kama sayansi huru ya Kiislamu; elimu ya Kiislamu iliungwa mkono kikamilifu na khalifa, na ilistawi huku mijadala na mijadiliano juu ya masuala yenye utata yakienea sana; Madh-habu zilizidi kuongezeka; makusanyo mbalimbali ya Hadiyth na Fiqh yalifanywa; na tafsiri za Kiarabu za kazi za kisayansi, kifalsafa na kitheolojia zilikuwa na athari katika fikra za Kiislamu. Kufikia mwisho wa kipindi hiki, Fiqh ilikuwa imegawanyika wazi katika sehemu mbili: Misingi ya msingi (Usuul)

This stage extends from approximately 750 CE to 950 CE, and covers the rise of the ‘Abbaasid Dynasty founded by Caliph Abul-‘Abbaas (reign 750-754)109, its consolidation and the beginning of its decline. It was during this period that Fiqh took shape as an independent Islamic science; Islamic scholarship was actively supported by the caliph and it flourished as discussion and debate on controversial issues became widespread; Madh-habs multiplied’ various compilations of Hadeeth and Fiqh were made; and Arabic translations of scientific, philosophical and theological works exerted influence on Islamic thought. By the end of the period, Fiqh was clearly divided into two sections; Fundamental principles (Usool)

na kanuni za pili za kazi za kisayansi, kifalsafa na kitheolojia (Furoo'); vyanzo vya sheria ya Kiislamu vilibainishwa, na tofauti zilizoendelezwa kati ya madh-hab kuu zikazitenganisha moja kwa nyingine. 110

and secondary principles of scientific, philosophical and theological works (Furoo’); sources of Islamic law were identified and deferences developed between the major Madh-habs separating them from each other. 110