Reference for Sanhedrin 216:15

ת"ר שלשה שמשו בתיבה וכולם לקו כלב ועורב וחם כלב נקשר עורב רק חם לקה בעורו

And he sent forth a raven.<span class="x" onmousemove="('comment',' Ibid. VIII, 7. ');">²⁷</span> Resh Lakish said: The raven gave Noah a triumphant retort. It said to him, 'Thy Master hateth me, and thou hatest me. Thy Master hateth me — [since He commanded] seven [pairs to be taken] of the clean [creatures], but only two of the unclean.<span class="x" onmousemove="('comment',' The raven is unclean (Lev. XI, 15). ');">²⁸</span>

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