Reference for Zevachim 60:9

תא שמע דבעא מיניה לוי מרבי חישב לאכול כזית למחר בחוץ מהו א"ל זו שאילה עירוב מחשבות הוי

as much as an olive. as much as an olive? ' - Come and hear, for Levi asked Rabbi: What if he intended eating as much as an olive on the morrow [after time] without bounds? Said he to him: That is indeed a question: it constitutes a mingling of intentions.<span class="x" onmousemove="('comment',' Even in R. Judah's opinion.');">¹⁵</span>

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