Negative commandment · Lo Ta’aseh #178 of 613
Not to eat worms that breed in produce after they become exposed to the air
שלא לאכול תולעת הפירות כשתצא לאוויר
The verse · Vayikra 11:42
כֹּל הוֹלֵךְ עַל־גָּחוֹן וְכֹל הוֹלֵךְ עַל־אַרְבַּע עַד כׇּל־מַרְבֵּה רַגְלַיִם לְכׇל־הַשֶּׁרֶץ הַשֹּׁרֵץ עַל־הָאָרֶץ לֹא תֹאכְלוּם כִּי־שֶׁקֶץ הֵם
“Whatever goes on its belly, and whatever goes upon four, or whatever has many feet among all creeping things that creep on the earth, them you shall not eat; for they are an abomination.”
The Rambam’s words
Not to eat worms that breed in produce after they become exposed to the air, as [Leviticus 11:42] states: "...for any swarming creature which breeds upon the land, you shall not eat them."
שלא לאכול תולעת הפירות כשתצא לאוויר, שנאמר "לכל השרץ, השורץ על הארץ--לא תאכלום" (ויקרא יא,מב).
Why · Sefer HaChinuch #163
To not eat species of minute swarming creatures born in seeds and fruits
“From the roots of the commandment, [we need to] preface [that] anyone who has intelligence will not have a doubt that there was never a man that grasped to know all wisdom to its end, that nothing of it be hidden from him.”
Who & when
“And [it] is practiced in every place and at all times by males and females.”
Where in the Mishneh Torah
Hilchot Forbidden Foods הלכות מאכלות אסורות