Reference for Shabbat 239:7
ולהיכן מצילין כו': מ"ש הכא דקתני לכם ומ"ש הכא דקתני עמי אמרי גבי מזונות קתני לכם משום דלא קא חזו אלא מזון ג' סעודות אבל גבי לבושים קתני עמי משום דקחזי ליה לכולי יומא:
and it is permitted. R. Nahman b. Isaac observed to Raba: Why is it an error? — He replied: Because it is stated, 'provided that he does not bring another vessel and catch [the dripping liquid] or another vessel and join it [to the roof]': [thus] only another vessel may not [be brought], but he may save as much as he desires in the same vessel. AND A ROUND CAKE OF PRESSED FIGS, etc. What have we to do with a reckoning? Surely they acquire it from hefker?<span class="x" onmousemove="('comment',' V. Glos. Seeing that he tells them to save it for themselves, it is theirs altogether. ');"><sup>23</sup></span> — Said R. Hisda: They spoke here of pious conduct.<span class="x" onmousemove="('comment',' A pious man will not take advantage of the fire to keep the food for himself. ');"><sup>24</sup></span> Will pious men take payment for the Sabbath? objected Raba.<span class="x" onmousemove="('comment',' Surely not. ');"><sup>25</sup></span>