Musar for Pesachim 47:13
מה תלמוד לומר לא יאכל אם אינו ענין לגופו תנהו ענין לכל איסורין שבתורה ואם אינו ענין לאכילה תנהו ענין להנאה
is deduced] from this: And the flesh that toucheth any unclean thing shall not be eaten: it shall be burnt with fire.<span class="x" onmousemove="('comment',' Lev. VII, 19.');"><sup>19</sup></span> Now,'shall not be eaten' need not be stated: why then is 'shall not be eaten' stated? If it is irrelevant for itself, seeing that it may deduced a minori from tithe, which is lighter, [thus:] if tithe, which is light, yet the Torah said, neither hav put away thereof, being unclean,<span class="x" onmousemove="('comment',' Deut. XXVI, 14, q.v. This refers to the second tithe, which was eaten by its Israelite owner in Jerusalem, and who had to declare that he had not eaten it 'being unclean', which shows that this was forbidden. The sanctity of titles is of course lighter than that of sacrifices.');"><sup>20</sup></span>