Reference for Chullin 266:1

הכא במאי עסקינן דיתיב עובד כוכבים אמסחתא

- We must suppose in this case that the gentile was sitting by the butcher's stall.<span class="x" onmousemove="('comment',' And this in itself is a manifest indication to all that the gentile has a share in the business.');">¹</span>

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