Reference for Zevachim 62:4

דלמא בהיסק גדול:

Thus only eating and burning; but eating and eating in a way similar to eating and burning combine, though burning requires more than the time for eating half [a loaf]!<span class="x" onmousemove="('comment',' Emended text (Rashi) . 'Eating and eating' means an intention to eat half as much as an olive and another intention to eat half as much as an olive.');">³</span> - [No:] perhaps it means in a big fire.<span class="x" onmousemove="('comment',' Where it will be quickly consumed.');">⁴</span>

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