Reference for Eruvin 144:2
למאן דאמר במחיצות המגיעות לתקרה מחלוקת תיובתא ולמאן דאמר במחיצות שאין מגיעות לתקרה מחלוקת סייעתא להך לישנא דאמר רב נחמן מחלוקת במסיפס תיובתא
Now, against him who stated that the dispute<span class="x" onmousemove="('comment',' Between Beth Shammai and Beth Hillel.');"><sup>4</sup></span> related only to partitions that reached the ceiling this<span class="x" onmousemove="('comment',' R. Judah's statement that they 'do not dispute . . where partitions reach the ceiling'.');"><sup>5</sup></span> presents an objection; in favour of him who stated that their dispute<span class="x" onmousemove="('comment',' Between Beth Shammai and Beth Hillel.');"><sup>4</sup></span> related only to partitions that did not reach the ceiling this<span class="x" onmousemove="('comment',' The statement of R. Judah that 'they only differ where the partitions do not reach the ceiling'.');"><sup>6</sup></span>