Reference for Eruvin 203:19
וכי אין בגגה טפח לא אמרן אלא שאין בפחות משלשה סמוך לגג טפח אבל יש בפחות משלשה סמוך לגג טפח אסור
spread it all out and you will be merely adding to all occasional tent,<span class="x" onmousemove="('comment',' Cf. prev. n.');"><sup>59</sup></span> and that is perfectly legitimate. Rab citing R'Hiyya ruled: It is permissible to draw, and to withdraw a certain on the Sabbath.<span class="x" onmousemove="('comment',' Such an act is regarded neither as the building nor as the demolishing of a 'tent', since the curtain does not serve the purpose of a permanent wall but merely that of a door which may well be opened and closed On the Sabbath.');"><sup>60</sup></span> It is also permissible to take down or to put up a bridal<span class="x" onmousemove="('comment',' Lit., 'bridegrooms'.');"><sup>61</sup></span>