Reference for Eruvin 206:13
ופליגא דרבא דאמר רבא אמר רב חסדא במקום בגדים אפילו נימא אחת חוצצת שלא במקום בגדים שלש על שלש חוצצות פחות משלש על שלש אינן חוצצות
IT WAS INTENDED TO FORCE OUT BLOOD IT IS FORBIDDEN IN BOTH CASES.<span class="x" onmousemove="('comment',' Lit., 'here and here', sc. even in the Temple, since the tightening serves no ritual purpose and comes, moreover, under the category of wounding which is one of the principal classes of activity that are forbidden on the Sabbath and which even the Temple service cannot supersede.');"><sup>43</sup></span> <big><b>GEMARA: </b></big>R.<span class="x" onmousemove="('comment',' 'Rab'. Var. lec. 'Rabbi' throughout the passage (Emden) .');"><sup>44</sup></span> Judah, son of R'Hiyya explained: They<span class="x" onmousemove="('comment',' The Rabbis of our MISHNAH:');"><sup>45</sup></span> learned this<span class="x" onmousemove="('comment',' A PRIEST . . MAY WRAP etc.');"><sup>46</sup></span>