Reference for Bekhorot 49:9

הלכה כר"ש

as follows: Rab says: The halachah is in accordance with R'Judah, whereas Samuel says: The halachah is in accordance with R'Simeon? - Indeed Rab holds that a forbidden act which was produced without intent is prohibited [on a festival day] and that tearing is not [considered] the same as shearing,<span class="x" onmousemove="('comment',' And therefore Rab declared that the ruling was according to R. Jose b. ha-Meshullam in connection with a firstling.');">⁶</span>

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