Commentary to Rambam's Mishneh Torah by R' Mas'ud Hai Rokach. Also included are novellae of earlier commentators that had not been previously published, including those of Rambam's son Avraham. The work was completed by the author's son-in-law R' Natan Adadi. The first part was published by the author in Venice in 1742-1743. Volume 2 was published by his great-grandson Abraham Hayyim Adadi, in Livorno in 1862. Volume 3 was published in Livorno in 1863 by his great-great-grandson, Jacob Rakkah. Volume 4 was published in Jerusalem in 1964 by Rabbi Shmuel Akiva Yaffe-Schlesinger.