Reference for Bekhorot 41:4

מאי איכא בין תנא קמא לרבי שמעון

[you may still maintain that] if it gave birth, it cannot give birth again in the sam year.<span class="x" onmousemove="('comment',' And therefore the language of the Baraitha affords no proof with regard to discharging.');">⁴</span>

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