Reference for Chullin 256:1

מהו שתעשה יד לחברתה

can it serve as a handle to the other [half]?<span class="x" onmousemove="('comment',' I.e., if unclean matter came into contact with the forbidden half, can it, seeing that it cannot contract uncleanness itself, serve as a handle to convey the uncleanness to the other half or not?');">¹</span>

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