Halakhah for Shabbat 234:6
ממאי דילמא עד כאן לא קאמר רבי אליעזר התם דאפשר בפרנסה אבל הכא דלא אפשר לא ועד כאן לא קאמר רבי יהושע התם משום דאיכא צער בעלי חיים אבל הכא דליכא צער בעלי חיים לא
— How so? perhaps R. Eliezer rules thus only there, because provisions can be made, but not here, seeing that that is impossible. And perhaps R. Joshua rules thus only there because suffering of dumb animals is involved; but not here that there is no suffering of dumb animals?<span class="x" onmousemove="('comment',' It is noteworthy that to save animals from suffering is regarded as a stronger reason for desecrating the Festival than to save one from personal loss. ');"><sup>14</sup></span> Our Rabbis taught: If he saved bread [made] of fine flour, he must not save coarse bread; (if he saved] coarse bread, he may [still] save a fine [flour] bread.<span class="x" onmousemove="('comment',' There is no evasion in saying that he prefers the latter, hence it is still a Sabbath need. ');"><sup>15</sup></span> And one may save on the Day of Atonement for the Sabbath,<span class="x" onmousemove="('comment',' This is permitted, as the food is required immediately the Sabbath commences. ');"><sup>16</sup></span>