Reference for Chullin 238:20

בשלמא עיליתא צריכי לתתיתא אלא תתיתא מאי צריכי לעיליתא

R'Simeon B'Lakish said: This was taught only with regard to a bone which is considered a handle, but a hair is not considered a handle.<span class="x" onmousemove="('comment',' But only a protection. And there is this qualification with regard to a protection, namely, that the contact must be made with the protection that is directly opposite the foodstuff.');">¹²</span>

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