וְכָל־בְּהֵמָ֞ה מַפְרֶ֣סֶת פַּרְסָ֗ה וְשֹׁסַ֤עַת שֶׁ֙סַע֙ שְׁתֵּ֣י פְרָס֔וֹת מַעֲלַ֥ת גֵּרָ֖ה בַּבְּהֵמָ֑ה אֹתָ֖הּ תֹּאכֵֽלוּ׃
Y todo animal de pezuñas, que tiene hendidura de dos uñas, y que rumiare entre los animales, ese comeréis.
Mishneh Torah, Forbidden Foods
The identification marks of cattle and game are indicated in the Torah, and there are two of them: "cloven hooves and ruminants" (Lev. 11:3; Deut. 14:6). All ruminants are missing their upper incisors. All ruminants have split hooves, except the camel. And all animals that have cloven hoofs are ruminants, except the hog.
Mishneh Torah, Forbidden Foods
From the scripture (Deut. 14:6): "and every beast that parts the hoof, forming thereby two entirely cloven hoofs, and ruminant [among the beasts, that may you eat.]" — I derive that everything that is not cloven-hoofed and ruminant must be forbidden. A prohibition derived from a commandment becomes a commandment. Regarding the camel, hare, and hyrax it says (Lev. 11:4; Deut. 14:7): "These you shall not eat among ruminants" — you see that they are forbidden even though they have one sign, certainly other non-kosher cattle or game that has none of the signs. The injunction against eating them is in addition to that derived commandment.