Chullin 220
כל מצות עשה שמתן שכרה בצדה אין בית דין שלמטה מוזהרין עליה
Every commandment which carries its reward by its side does not fall within the jurisdiction of the Court below.'<span class="x" onmousemove="('comment',' And the reward for honouring parents is stated side by side with the precept; v. Ex. XX, 12. heka');"><sup>1</sup></span>
מ"ש למיסר נפשה דלא מיבעיא לך דתנן
When he [R'Safra] returned, Abaye said to him: 'I had no doubt at all that it, itself, was forbidden;<span class="x" onmousemove="('comment',' It is certainly permitted because it is discharging blood all the time during the cooking and will not absorb at all.');"><sup>3</sup></span>
דילמא התם בכבדא דאיסורא
Then you should have no more doubts as to whether it renders others forbidden, for we have learnt: The liver renders [other pieces in the pot] forbidden but is not itself rendered forbidden, for it exude and does not absorb'!<span class="x" onmousemove="('comment',' Ter. X, 11.');"><sup>4</sup></span> - He replied.' Perhaps there it refers to the liver of a forbidden [animal]