Reference for Eruvin 174:8

ההיא זעירי אמרה ולזעירי קשיא הא

- Both Abaye B'Abin and R'Hanina B'Abin replied: The law of cavities<span class="x" onmousemove="('comment',' Though applicable to Pentateuchally forbidden domains.');">¹⁷</span> does not apply to a karmelith.<span class="x" onmousemove="('comment',' Being only a Rabbinically forbidden domain no additional restrictions were imposed upon its use.');">¹⁸</span> R'Ashi replied: It may even be conceded that the law of cavities does apply to a karmelith, but this is the case only where the cavity is near<span class="x" onmousemove="('comment',' If, for instance, it was in a wall adjoining a karpaf that was bigger than two beth Se'ah.');">¹⁹</span>

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