Reference for Bekhorot 58:28

השתא צמר מלובן לא זבנינן צואי מיבעיא

<big><b>MISHNAH: </b></big>IF ONE IS SUSPECTED OF IGNORING THE SABBATICAL YEAR,<span class="x" onmousemove="('comment',' I.e., of sowing or doing business with the spontaneous growth of the sabbatical year.');">¹³</span>

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