[5] During his early years, al-Ījī moved to Tabriz and studied grammar and the rational sciences under Fakr al-Din al-Jarbadadi, a pupil of the distinguished scholar, al-Baydawi.
He was successful in gaining the respect of the influential vizier, Rashid al-Din Hamadani, who was a Jew who had converted to Islam when the Mongols themselves eventually abandoned their inherited beliefs in Shamanism or Buddhism.
Nevertheless, it has been reported al-Ījī served as the judge in Sultaniyya and Rashīd al-Dīn offered him a teaching position at a mobile "university" that accompanied the Il-khanid monarch Öljaitü throughout his expeditions.
Eventually, he appears to have settled back in Shābankārah, where he was left to manage substantial lands that protected his family's riches in the form of a charitable trust (waqf) following the death of his father in 1317.
But when the Ilkhanate dynasty came to an end in 1335, he relocated to Shiraz, where he was given protection by the provincial ruler Abū Isḥāq Injü and rose to the position of chief judge in the town.
[4][9] He produced great students who became horizons as described by biographers:[6] After nearly two decades of this peaceful period, al-Ījī's patron was ousted from Shiraz in 1354 by Mubāriz al-Dīn, a rival monarch whose domain also included Shābankārah.
[5] Al-Ījī was a prolific writer who covered several fields including scholastic theology, jurisprudence (according to the Shāfiʿī school), Qurʾanic exegesis, rhetoric and dialectics, ethics, and, to some extent, historiography.