Parashas Vayikra · Aliyah 3 · Passuk 3
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim / Chullin context on chelev of shelamim.
E-Daf / Tsurras Hadaf
PDF of the daf / source
English: The fat that covers the innards and all the fat that is on the innards.
Specification of the altar portions of shelamim — only designated fats go up.
From the shelamim the kohen brings as an isheh the fat covering the innards and all the fat upon the innards. These are burned on the altar.