Reference for Shabbat 284:16

אביי מנח כפא אכיפי רבא מנח סכינא אבר יונה ומטלטלה אמר רב יוסף כמה חריפא שמעתתא דדרדקי אימר דאמור רבנן בשוכח לכתחילה מי אמור

— Since he cannot take [the whole of] the wine, should he desire it, unless he lifts it up, it is analogous to where the non-edible exceeds the edible.<span class="x" onmousemove="('comment',' Eventually he must lift out the cask and tilt it in order to obtain the wine at the very bottom; hence there is no more trouble in lifting it out now. ');">¹⁴</span>

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