Reference for Eruvin 70:6

קסבר ר"מ תחומין דאורייתא נינהו

This applies only to a major uncleanness<span class="x" onmousemove="('comment',' Sc. one that is Pentateuchal (Rashi) .');">¹¹</span> but in the case of a minor uncleanness<span class="x" onmousemove="('comment',' One that is only Rabbinically so.');">¹²</span>

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