Reference for Pesachim 74:1

אחד מכל קרבן אחד שלא יטול פרוס והכא כמאן דפריסא דמיא קמ"ל

out of each oblation,<span class="x" onmousemove="('comment',' Ibid. 14.');">¹</span> 'one' [intimating] that he should not take a broken-off piece, whereas here it is as broken off:<span class="x" onmousemove="('comment',' Since it is not completely baked.');">²</span>

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