Sefer HaMitzvot, Positive Commandments
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
היא שצונו לדון בטומאת אוכלין ומשקין הדינין הכתובים, ומצוה זו כוללת טומאת אוכלין ומשקין בכללם. (שמיני טהרה טומאת אוכלים פט"ז):
Sefaria Edition 2021, Translated by Rabbi Francis Nataf
That is that He commanded us to administer [the laws of] impurity of foods and drinks. And this commandment includes the impurity of foods and drinks in its entirety. (See Parashat Shemini; Mishneh Torah, Defilement of Foods 16.)