Midrash for Chullin 268:35

אי זהו לחי מן הפרק של לחי עד פיקה של גרגרת:

THE CORRESPONDING PART OF THE HIND LEG IS CALLED THE THIGH.<span class="x" onmousemove="('comment',' I.e., from the tarsus to the innominate bone; this also consists of two bones, the tibia and the femur. This portion together with the breast was to be given to the priest from every peace-offering, cf. Lev. VII, 32.');">²⁴</span>

Sifrei Devarim