Reference for Chullin 155:12

השוחט אותו ואת בנו חולין בחוץ שניהם כשרים והשני סופג את הארבעים

ITS YOUNG, BOTH ANIMALS BEING UNCONSECRATED, [AND THEY SLAUGHTERED THEM] OUTSIDE THE SANCTUARY, THEY ARE BOTH VALID,<span class="x" onmousemove="('comment',' Even though there has been a transgression of the prohibition.');">⁷</span>

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