[1737] A phenomenon (dhamma) fixed in rightness (sammattaniyata) is a condition for an unfixed (aniyata) phenomenon by dissociation condition (vippayutta-paccaya): conascent (sahajāta), postnascent (pacchājāta).
Conascent: aggregates fixed in rightness are a condition for mind-originated forms (cittasamuṭṭhāna-rūpa) by dissociation condition.
Postnascent: aggregates fixed in rightness are a condition for this prenascent (purejāta) body by dissociation condition.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.