Parashas Kedoshim · Passuk 19:07
Chabad.org — English translation + Rashi
Torah Temimah · Zevachim 28b (cross-ref Tzav).
English: If it is not needed for [teaching about] outside its time, apply it to outside its place.
Pigul of place as well as time
The doubled language of eating on the third day, already addressed elsewhere for time, is redirected to teach the parallel disqualification of intention to eat outside the permitted place.