אָז לֹא אֵבוֹשׁ, בְּהַבִּיטִי אֶל כָּל מִצְוֹתֶיךָ:
כָּל הַמִּצְווֹת שֶׁנִּתְּנוּ לוֹ לְמֹשֶׁה בְּסִינַי – בְּפֵרוּשָׁן נִתְּנוּ, שֶׁנֶּאֱמָר "וְאֶתְּנָה לְךָ אֶת־לֻחֹת הָאֶבֶן, וְהַתּוֹרָה וְהַמִּצְוָה" (שמות כד, יב): "תּוֹרָה", זוֹ תּוֹרָה שֶׁבִּכְתָב; וּ"מִצְוָה", זֶה פֵּרוּשָׁהּ. וְצִוָּנוּ לַעֲשׂוֹת הַתּוֹרָה, עַל פִּי הַמִּצְוָה. וּמִצְוָה זוֹ, הִיא הַנִּקְרֵאת תּוֹרָה שֶׁבְּעַל פֶּה.
כָּל הַמִּצְווֹת שֶׁנִּתְּנוּ לוֹ לְמֹשֶׁה בְּסִינַי – בְּפֵרוּשָׁן נִתְּנוּ, שֶׁנֶּאֱמָר "וְאֶתְּנָה לְךָ אֶת־לֻחֹת הָאֶבֶן, וְהַתּוֹרָה וְהַמִּצְוָה" (שמות כד, יב): "תּוֹרָה", זוֹ תּוֹרָה שֶׁבִּכְתָב; וּ"מִצְוָה", זֶה פֵּרוּשָׁהּ. וְצִוָּנוּ לַעֲשׂוֹת הַתּוֹרָה, עַל פִּי הַמִּצְוָה. וּמִצְוָה זוֹ, הִיא הַנִּקְרֵאת תּוֹרָה שֶׁבְּעַל פֶּה.
The Rambam's Introductionto the Mishneh Torah
"In the name of God, Lord of the world" (Genesis 21:33)
"Then I will not be ashamed when I gaze at all Your mitzvot" (Psalms 119:6).
The mitzvot given to Moses at Mount Sinai were all given together with their explanations, as implied by [Exodus 24:12]: "And I will give you the tablets of stone, the Torah, and the mitzvah."
"The Torah" refers to the Written Law; "the mitzvah," to its explanation. [God] commanded us to fulfill "the Torah" according to [the instructions of] "the mitzvah." "The mitzvah" is called the Oral Law.
"In the name of God, Lord of the world" (Genesis 21:33)
"Then I will not be ashamed when I gaze at all Your mitzvot" (Psalms 119:6).
The mitzvot given to Moses at Mount Sinai were all given together with their explanations, as implied by [Exodus 24:12]: "And I will give you the tablets of stone, the Torah, and the mitzvah."
"The Torah" refers to the Written Law; "the mitzvah," to its explanation. [God] commanded us to fulfill "the Torah" according to [the instructions of] "the mitzvah." "The mitzvah" is called the Oral Law.