Reference for Sanhedrin 165:5

מיתיבי ואלו הן שבמיתה טמא ששימש תיובתא:

he is liable, and presumably [his liability is] to death<span class="x" onmousemove="('comment',' But since uncleanliness is mentioned, it follows that a ritually unclean priest who offered incense is liable to death. This contradicts R. Shesheth's ruling. ');">⁵</span>

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