Reference for Chullin 163:35

אם קדם השני הרי זה זריז ונשכר

IF HE SLAUGHTERED IT AND THEN ITS CALF AND THEN THE CALF'S OFFSPRING, HE INCURS EIGHTY STRIPES.<span class="x" onmousemove="('comment',' The prohibition has in this case been infringed twice.');">²¹</span>

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