Reference for Bekhorot 57:34

המקדש במי חטאת ובאפר חטאת שמע מינה:

In the case mentioned above [in the Baraitha] it is payment for bringing the ashes<span class="x" onmousemove="('comment',' From a distance to Jerusalem, and for the money earned in that manner he betrothes a woman.');">²¹</span>

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