Reference for Keritot 29:37

אמר רבא לרב נחמן

Raba said to R'Nahman: Do we say [as an argument] since he caused them [liability to separate offerings]; surely it has been taught: 'If the man [committed several acts]<span class="x" onmousemove="('comment',' Viz., with the same incestuous relation. Rashi mentions also the version that it refers to five different women.');">²¹</span>

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