[1741] A phenomenon (dhamma) that is undefiled and not subject to defilement (asaṅkiliṭṭha-asaṅkilesika) is a condition for a phenomenon that is undefiled but subject to defilement (asaṅkiliṭṭha-saṅkilesika) by presence condition (atthi-paccaya): conascent (sahajāta), postnascent (pacchājāta).
Conascent: aggregates (khandhā) that are undefiled and not subject to defilement are a condition for mind-originated forms (cittasamuṭṭhāna-rūpa) by presence condition.
Postnascent: aggregates that are undefiled and not subject to defilement are a condition for this prenascent (purejāta) body by presence condition.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.