This book deals with the laws of the Seventh or the Sabbatical year, based on the rulings of the Rambam and the responsa and rulings of our rabbi and teacher, HaGaon Rabbi Yosef Qafih, zt"l. In addition, it contains a commentary by the author, Rav Aviad Asual (may HaShem protect him and give him life), entitled "Nahalath Mosheh" which explains the methodologies of both the Rambam and Rav Qafih.
An excerpt from the book's introduction, written by the author:
The inception of Shemittath Mosheh took place fourteen years ago when it was first published as a booklet under the title "A Pamphlet of the Laws of Shemittah." This booklet was published during Sukkoth in the year 5761, about three months after the passing of our master and teacher, HaGaon Mori Yosef Qafih (may he be remembered for the life of the World to Come). After three additional months, "Laws of Shemittah" was published in book form and since then it has never been published a second time. Now, at the outset of the shemittah year of 5775, desire for these laws has once again been awakened and so it was necessary to publish "Laws of Shemittah" once again. This being the case, we went back and and looked over everything that had been written, added many additional halakhoth, listed sources, and even revised several rulings originally found in "Laws of Shemittah." And since after this process the book had become a new work altogether, both in content and in scope, we decided to rename it as "Shemittath Mosheh" and included it as a volume in a series along with "Birkath Mosheh" and "Moadei Mosheh". These books have been published up until now by Makhon Mishnath HaRambam ("Makhon Mosheh") under the leadership and direction of our teacher, HaGaon HaRav Ratson Arusi shlit"a.
The title of the book, "Shemittath Mosheh," was chosen at the suggestion of our teacher, HaGaon HaRav Ratson Arusi shlit"a. He holds that an important goal for us is that the halakhic teachings of the Rambam according to the methodology of Mori (may he be remembered for the life of the World to Come) should be made available to all who request and seek them. Therefore, the name should practically express that end, namely that Torah may be sought from the mouths of the Rambam and Mori Yusef - halakhic instruction which is so desperately needed. He also explained that "Shemittath Mosheh" is a name more readily understood by the Jewish public with a view to its practical purpose. And we think that the suggestion of Rav Arusi was a good one.
The commentary we titled "Nahalath Mosheh" and there are several reasons for this, the primary one being to convey that part of our unique inheritance are the Torah teachings of our teacher, Rabbi Mosheh ben HaRav Maimon (may he be remembered for life in the World to Come).
So, both of these titles taken together are meant to communicate that the observance of the Seventh or Sabbatical year will be on a de-oraitha level as it is written in Torath Mosheh when each tribe of Israel dwells in its own inherited portion (nahalah) of the land. May it occur in our lifetimes and in our days.