Reference for Shabbat 201:5
מידי איריא התם הויא ליה מחיצה שהגדיים בוקעין בה הכא הויא לה מחיצה שאין הגדיים בוקעין בה א"ל רב אחא בריה דרב אחא לרב אשי גבי ספינה נמי הא איכא בקיעת דגים א"ל בקיעת דגים לא שמיה בקיעה ומנא תימרא דבעא מיניה רבי טבלא מרבין מחיצה תלויה מהו שתתיר בחורבה וא"ל אין מחיצה תלויה מתרת
so here too, stretch and bring the partition down. Hence [Abaye continues].<span class="x" onmousemove="('comment',' R. Joseph's question. ');"><sup>12</sup></span> this is surely [not] an argument; there<span class="x" onmousemove="('comment',' In the case of the basket set on top of a rod. ');"><sup>13</sup></span> it is partition through which goats can pass;<span class="x" onmousemove="('comment',' I.e., even if one adopts that fiction, such imaginary partitions cannot keep goats out! and that is the legal test of a barrier; therefore the Rabbis exempt him. ');"><sup>14</sup></span> but here<span class="x" onmousemove="('comment',' In the case of the boat. ');"><sup>15</sup></span> they are partitions through which goats cannot pass.<span class="x" onmousemove="('comment',' Being in the water. ');"><sup>16</sup></span> R. Aha son of R. Aha said to R. Ashi: But in the case of a ship too, there is the passing through of fish? The passing through of fish is not designated passing through, he replied. And whence do you say this? For R. Tabla asked Rab: Can a suspended partition make a ruin permissible [for carrying therein]?<span class="x" onmousemove="('comment',' E.g. the ruins of a hut which has part of a a wall hanging from the roof: does this wall make it as though enclosed, so that it ranks as a private domain? ');"><sup>17</sup></span> And he answered him: A suspended partition makes [something] permissible only