Reference for Chullin 155:16

חולין וקדשים בחוץ הראשון כשר ופטור והשני סופג את הארבעים ופסול

IF BOTH ANIMALS WERE UNCONSECRATED [AND THEY WERE SLAUGHTERED] INSIDE THE SANCTUARY, BOTH ANIMALS ARE INVALID,<span class="x" onmousemove="('comment',' V. Kid. 57b. Unconsecrated animals slaughtered inside the Sanctuary are thereby rendered invalid, but he who slaughtered them has not incurred the penalty of stripes, for the prohibition thereof is not expressly stated in the Torah, but is deduced from the verse in Deut. XII, 21.');">¹¹</span>

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