TT #211 · Parashas Reeh · Fourth Aliyah · Passuk 14:21
You shall not eat any carcass; give it to the stranger within your gates, that he may eat it, or sell it to a foreigner; for you are a holy people to Hashem your God. You shall not boil a kid in its mother’s milk.
Torah Temimah points to Yerushalmi Nazir / Torah Temimah.
Sefaria — Torah Temimah on Deuteronomy 14:21
English: One who eats a limb from a living terefah animal is liable for two prohibitions: neveilah and “you shall not eat the life with the flesh.”
Derash combining two verses (TT) — two separate lavin apply even in a single act.
Eating a limb from a live terefah incurs dual liability.