?Imad al-Din Tabari (fl. 2nd half 7th/13th cent.) was a Shi?i religious scholar. Little is known about his personal life, just that he was born in Tabaristan (today's Mazandaran) and that he was from the generation after Nasir al-Din Tusi (d. 672/1274). It is not known with whom he studied or when he left his region of origin. What we do know, is that he lived until 667/1268-9 in Burujird, that in 671/1272-3 he was a resident of Qum, and that in 672/1273-4, Baha? al-Din al-Juwayni (d. 683/1284)-then chancellor of the exchequer under the Mongol ruler Abaqa Khan (d. 680/1282)-sent him to Isfahan to polemicise against the enemies of the Shi?a. He is the author of some 18 works, ten of which are on Imamism, the doctrine on which Twelver Shi?ism is founded. The Persian Tuhfat al-abrar is one of these, published here for the very first time.