Positive commandment · Mitzvat Aseh #132 of 613
To read the statement [acknowledging thanks] for the first fruits
לקרות על הביכורים
The verse · Devarim 26:5
וְעָנִיתָ וְאָמַרְתָּ לִפְנֵי ה׳ אֱלֹהֶיךָ אֲרַמִּי אֹבֵד אָבִי וַיֵּרֶד מִצְרַיְמָה וַיָּגׇר שָׁם בִּמְתֵי מְעָט וַיְהִי־שָׁם לְגוֹי גָּדוֹל עָצוּם וָרָב
“And thou shalt speak and say before the Lord thy God, An Arammian nomad was my father, and he went down to Miżrayim, and sojourned there with a few, and became there a nation, great, mighty, and populous:”
The Rambam’s words
To read the statement [acknowledging thanks] for the first fruits, as [Deuteronomy 26:5] states: "And you shall respond and say before G-d, your Lord:...."
לקרות על הביכורים, שנאמר: "וענית ואמרת לפני ה' אלוהיך" (דברים כו,ה).
Why · Sefer HaChinuch #606
Recital over the first-fruits
“It is from the root of the commandment [that it is] since a man arouses his thoughts and draws the truth in his heart with the power of the words of his mouth.”
Who & when
“And this commandment is practiced at the time that the Temple is in existence, but only in the Land of Israel — as it is stated (Exodus 23:19), “The first fruits of your land you shall bring to the House of the Lord, your G-d” — by males, but not by females, as we have said.”
Where in the Mishneh Torah
Hilchot First Fruits and other Gifts to Priests Outside the Sanctuary הלכות ביכורים ושאר מתנות כהונה שבגבולין