Isaac's conspicuous piety drew toward him many disciples, the best known of whom were Perez ben Elijah of Corbeil (Rabbeinu Perez), Baruch Ḥayyim ben Menahem of Niort, and his fellow citizen Joseph ben Abraham.
Isaac's devoutness attracted many disciples, among whom were Perez ben Elijah of Corbeil (Rabbeinu Perez), Baruch Ḥayyim ben Menahem of Niort, and his fellow citizen Joseph ben Abraham.