TT #220 · 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 Chullin 113a / Torah Temimah.
Sefaria — Torah Temimah on Deuteronomy 14:21
English: “You shall not boil a kid” — this entire verse is expounded in Parashat Mishpatim; the three repetitions exclude wild animals, fowl, and unclean animals from the basar be-chalav prohibition.
Ribbuy and mi’ut from the threefold repetition (Chullin / TT).
Basar be-chalav applies to kosher domestic animals; the three statements exclude other categories.