Reference for Menachot 152:13

(אמר רבי אלעזר) מאי מפני החיסחון אמר רבי אלעזר התורה חסה על ממונן של ישראל היכא רמיזא דכתיב (במדבר כ, ח) והשקית את העדה ואת בעירם:

BUT THEY BROUGHT FINE FLOUR AND SIFTED IT AS MUCH AS WAS NECESSARY, AS IT IS SAID, AND THOU SHALT TAKE FINE FLOUR AND BAKE IT:<span class="x" onmousemove="('comment',' Lev. XXIV, 5.');">¹²</span> [IT MAY NOT BE BAKED] UNTIL IT IS SIFTED AS MUCH AS IS NECESSARY.<span class="x" onmousemove="('comment',' But it is immaterial through how many sieves the flour had passed.');">¹³</span>

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