His writings are still in manuscript: Yeled Zekunim, a collection of letters sent to him by rabbis and emissaries with his replies, some of which were published by J. Nacht (see bibl.). His halakhic works are Ir Miklat on the precepts; Mishpat ha-Morim; Da'at Zekenim; Ta'am Zekenim; and Penei Zekenim. Responsa and additional letters are to be found in the Jewish Theological Seminary of New York (nos. 55–915–1044).