Reference for Eruvin 139:7

אלא פשיטא דאיכא אחרינא בהדיה וקתני לאחד שעירב

Now, how is one to understand the circumstances? If there was no other tenant with him,<span class="x" onmousemove="('comment',' With the tenant who prepared the 'erub.');">²³</span> with whom could he have joined in an 'erub? It is consequently obvious that there must have been another tenant with him, and yet it was stated: 'To one of those who joined in the 'erub'!<span class="x" onmousemove="('comment',' How then could Rabbah maintain that the renunciation must be made in favour of every individual tenant?');">²⁴</span> - And Rabbah?<span class="x" onmousemove="('comment',' How then could Rabbah maintain that the renunciation must be made in favour of every individual tenant?');">²⁴</span>

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