Reference for Niddah 125:1

אם הקפיד עליו אין אי לא לא

it is unclean only if the owner minds the absorption, but not otherwise.<span class="x" onmousemove="('comment',' Lit., 'yes; if not, not'. The inference from the Mishnah cited by Resh Lakish, from which it follows that 'if it can emerge it is unclean even though it had not yet emerged', applies to a case where the owner minded the absorption. ');">¹</span>

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