Reference for Pesachim 94:2

א"ר פפא בר שמואל באבנים מקורזלות

- Said R'Papa B'Samuel: The reference is to smooth, round stones.<span class="x" onmousemove="('comment',' The ploughing breaks up the earth into smooth, round lumps; these are not fit for covering the blood, for which crushed, dust-like earth is ,ukzruen ohbctc required. Rashi, however, merely reads: stones; v. Tosaf. s.v. .');">³</span> [But] they are fit for crushing?<span class="x" onmousemove="('comment',' And then be used for covering the blood.');">⁴</span>

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