Reference for Eruvin 51:8

א"ר אלעאי שמעתי מר"א ואפי' בית כור: מתניתין דלא כחנניה דתניא חנניה אומר ואפילו היא ארבעים סאה כאסטרטיא של מלך

R'Huna son of R'Joshua also said to Raba: Did not R'Huna rule that a partition that was intended to [protect objects] put [beside it] is no valid one?<span class="x" onmousemove="('comment',' Lit., 'its name is not partition'.');">¹¹</span> For, as a matter of fact, Rabbah B'Abbuha provided a separate 'erub for each row of alleys throughout all Mahuza,<span class="x" onmousemove="('comment',' A comparatively small town without a wall around it situated on the Tigris, south of Bagdad.');">¹²</span>

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