Reference for Chullin 261:27

הפרט והעוללות והשכחה והפאה

When this was reported to Rab, he said: Is it not enough for him that We do not take the dues from his own [slaughtering],<span class="x" onmousemove="('comment',' I.e., when he slaughters his own animal we do not compel him to give the dues to a priest. The tone of Rab's remark implies that this was a concession to them by the Rabbis.');"><sup>22</sup></span>