Among his unpublished works, special mention may be made of the Ronnu le-Ya'aḳob, in which he calls himself "the proselyte" ("ger ẓedeḳ").
Among his unrecorded works, a significant piece is the Ronnu le-Ya'aḳob, in which he designates himself as "the righteous proselyte" ("ger ẓedeḳ").