Negative commandment · Lo Ta’aseh #172 of 613
Not to eat non-kosher animals
שלא לאכול בהמה טמאה
The verse · Devarim 14:7
אַךְ אֶת־זֶה לֹא תֹאכְלוּ מִמַּעֲלֵי הַגֵּרָה וּמִמַּפְרִיסֵי הַפַּרְסָה הַשְּׁסוּעָה אֶת־הַגָּמָל וְאֶת־הָאַרְנֶבֶת וְאֶת־הַשָּׁפָן כִּי־מַעֲלֵה גֵרָה הֵמָּה וּפַרְסָה לֹא הִפְרִיסוּ טְמֵאִים הֵם לָכֶם
“Nevertheless these you shall not eat of those which chew the cud, or of those which divide the cloven hoof; the camel, and the hare, and the coney: for they chew the cud, but do not divide the hoof; therefore they are unclean to you.”
The Rambam’s words
Not to eat non-kosher animals, as [Deuteronomy 14:7] states: "Nevertheless, among those who chew the cud, these you may not eat...."
שלא לאכול בהמה טמאה, שנאמר "אך את זה, לא תאכלו, ממעלי הגרה" (ויקרא יא,ד; דברים יד,ז).
Why · Sefer HaChinuch #154
To not eat an impure beast or animal
“It is from the roots of this commandment [that it is] because the body is an instrument of the soul — with it, it carries out its activity; without it, it can never complete its work.”
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