Reference for Eruvin 157:15

אמרי בית כיון דאיכא (מחיצות ו) תקרה כי מיפחית מינכרא ליה מלתא הכא לא מינכרא ליה מלתא:

into his basket and feed his cattle therewith. If the height of the straw was reduced to less tha ten handbreadths, both<span class="x" onmousemove="('comment',' The tenants of either courtyard.');">⁴⁹</span> are forbidden.<span class="x" onmousemove="('comment',' To move any objects from their respective houses into their respective courtyards.');">⁵⁰</span> How is one to proceed?<span class="x" onmousemove="('comment',' If it is desired to enable at least one of the tenants to use his courtyard.');">⁵¹</span>

Jastrow

Jastrow