The Tipiṭaka in Three Languages

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Abhidhammapiṭaka · Kathāvatthu · Vol. 37 · Section 466

[466] "An Arahant's excrement and urine (uccāra-passāva) are the outflow (nissanda) of what has been eaten, drunk, chewed, and tasted — there is a receptacle (āsaya) for them?" "Yes." "An Arahant's emission of impure semen (asuci-sukka-visaṭṭhi) is the outflow of what has been eaten, drunk, chewed, and tasted — there is a receptacle for it?" "It should not be said thus." …

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 3 other places