Reference for Chullin 265:14

כיון דשמענא להא ונתן ולא שיטול מעצמו מיחטף לא חטיפנא

Raba said: R'Joseph once tested us [by the following question]: If a priest snatches the priestly dues,<span class="x" onmousemove="('comment',' From children who are taking it to another priest.');">¹¹</span>

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