Commentary for Kiddushin 49:6
אמר מר רבי אומר אף הסירוס סירוס דמאי אילימא סירוס דגיד היינו גוייה אלא לאו סירוס דביצים
Rabbi said: For castration too; Ben 'Azzai sai [For] the [loss of the] tongue too.<span class="x" onmousemove="('comment',' Because it is seen when one peaks; hence its loss is a patent blemish.');"><sup>10</sup></span> The master said: 'Rabbi said: For castration too.' Castration of what: shall we say: Castration of the membrum?
Daf Shevui to Kiddushin
This clarifies that castration refers to cutting off the testicles and not the penis. I will add here that there is a great reference to this passage in an episode of Game of Thrones. For more information, contact me.
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