Parashas Acharei Mos · Passuk 17:02
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim.
English: “Speak to Aharon and to his sons” — one might think that since they are not liable for bringing up inside, they would not be liable for slaughtering outside; the verse includes them.
Inclusion of Kohanim in shechutei chutz
Kohanim are fully liable for slaughtering consecrated animals outside the camp, even though certain inner procedures differ for them.