Reference for Pesachim 148:3
שאני לב דשיע
- The heart is different, because it is smooth.<span class="x" onmousemove="('comment',' Hence it does not absorb, so that even if it were boiled in a pot it would be permitted, though there that it is not directly over the fire we certainly cannot say, so it exudes.');"><sup>6</sup></span> But surely Rabin the Elder put a paste of dough over a [roasted] pigeon for Rab, and he [Rab] said to him, 'If the paste is good [tasty], give it me and I will eat it? '<span class="x" onmousemove="('comment',' Now the paste absorbs blood from the roasted pigeon; since he wanted to eat it, he must have known that it reexudes it.');"><sup>7</sup></span> - That was [done] with [a paste of] fine flour, which is crumbly.<span class="x" onmousemove="('comment',' And so leaves room for the blood to ooze.');"><sup>8</sup></span>