א מִצְוַת עֲשֵׂה מִן הַתּוֹרָה לֶאֱכל מַצָּה בְּלֵיל חֲמִשָּׁה עָשָׂר שֶׁנֶּאֱמַר (שמות יב יח) "בָּעֶרֶב תֹּאכְלוּ מַצֹּת". בְּכָל מָקוֹם וּבְכָל זְמַן. וְלֹא תָּלָה אֲכִילָה זוֹ בְּקָרְבַּן הַפֶּסַח אֶלָּא זוֹ מִצְוָה בִּפְנֵי עַצְמָהּ וּמִצְוָתָהּ כָּל הַלַּיְלָה. אֲבָל בִּשְׁאָר הָרֶגֶל אֲכִילַת מַצָּה רְשׁוּת רָצָה אוֹכֵל מַצָּה רָצָה אוֹכֵל אֹרֶז אוֹ דֹּחַן אוֹ קְלָיוֹת אוֹ פֵּרוֹת. אֲבָל בְּלֵיל חֲמִשָּׁה עָשָׂר בִּלְבַד חוֹבָה. וּמִשֶּׁאָכַל כְּזַיִת יָצָא יְדֵי חוֹבָתוֹ:
1 The Torah commands us to eat matzah on the night preceding the fifteenth day of Nisan, as it is written: "In the evening, you shall eat unleavened bread" (Exodus 12:18), everywhere and throughout time. It did not make this eating dependent on the Passover sacrifice. Rather this is a commandment on its own; and [the time of] its commandment is all of the night. But during the rest of the festival, the eating of matsa is optional - if he wants, he may eat matsa; [and] if he wants, he may eat rice, millet, roasted grains or fruits [instead]. However on the night of the fifteenth alone, it is an obligation. By eating a piece of matzah the size of an olive [on the night of the fifteenth] one fulfills his duty.