Reference for Bava Metzia 156:12

ההוא דאמר להו אבזקת במילתא דמלכא אמרו ליה במאי בטלי כסף או בטלי דהב איכא דאמרי בטלי כסף אמר וקטלוה איכא דאמרי בטלי דהב אמר ושבקוה

But it is this dictum of R. Meir. For it has been taught: R. Simeon b. Eleazar said on R. Meir's authority: If one gives a <i>denar</i> to a poor man to buy a shirt, he may not buy a cloak therewith; to buy a cloak, he must not buy a shirt, because he disregards the donor's desire.<span class="x" onmousemove="('comment',' The reasoning is as above. But the same refutation cannot be given as there, for in that case, why should R. Meir state two laws which are both based on exactly the same principle? Maharsha [H] ');">¹²</span>

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