 He collected hadith in Mecca.One of his most quoted sources is Ata ibn Abi Rabah, his teacher.According to the testimony of Ibn al-Nadim, ‘Abd ar-Razzaq as-San‘ani and Ibn Abi Shaybah, Ibn Jurayj was at least partially responsible for the standard categories and structure of fiqh works, for example placing a section on 'ibadat' (acts of worship) before 'mu'amalat' (transactions).