Reference for Bekhorot 66:9

מפני שנראה כעובד עבודה בקדשים

[It is a precautionary measure] lest he raise herds from them.<span class="x" onmousemove="('comment',' If you permit him to flay the skin from the feet from the unfit sacrifices he may delay killing the animals until he finds somebody who wants whole skins, meanwhile rearing stocks from these disqualified sacrificial animals. This might eventually lead to committing the offence of shearing or working them. Hence the flaying from the feet is prohibited by all the authorities concerned.');">⁸</span>

Jastrow

Jastrow

Jastrow