Reference for Chullin 206:33

אכל חצי זית והקיאו וחזר ואכלו מהו

EXCEPTING THE FLESH OF FISH AND OF LOCUSTS; AND IT IS ALSO FORBIDDEN TO PLACE UPON THE TABLE [FLESH] WITH CHEESE,<span class="x" onmousemove="('comment',' This is a Rabbinic measure as a precaution against eating the two together.');">¹⁷</span>

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