All the mitzvot, etc., were given along with their interpretation. Our Rabbi, may his memory be blessed, in the introduction to his commentary on the Mishnah, indicated the source of these words in the Torat Kohanim, parashat Behar: all the mitzvot were given with their general principles, specific details, and nuances at Mount Sinai. Our Rabbi explained there that this refers to the general and specific principles, that is, the aspects we are to derive from the concepts of "klal" (general rule) and "prat" (specific rule) and from the other thirteen middot (methods of interpretation). And our teacher, the Gaon Rabbi Eliyahu, may his memory be blessed, added a reference to Torat Kohanim in parashat Tzav, where it is stated: "That which Hashem commanded…," including all of them. And in Torat Kohanim in parashat Bechukotai, in the verse "on Mount Sinai through the hand of Moshe," it is taught that the Torah was given with its halachot (laws), details, and explanations through Moshe from Sinai. It is explained there: "These are the chukim (decrees), referring to the midrashim, etc." And in the Talmud Yerushalmi, chapter 2 of Peah, we read: "The words, the things" include Mikra (Scripture), Mishnah, Talmud, and Aggadah, etc. And see in Avot de Rabbi Natan, where it says: "These are the chukim, mishpatim (laws), and torot (instructions)." And see in Megillah 19b the explanation of the verse: "And about them, according to all the words."

The term "Torah" refers to the Torah itself, and "the mitzvah" refers to its interpretation. Berachot 5, Gaon Rabbi Eliyahu (the Gra).