[470] Which phenomena (dhammā) are indeterminate (abyākata)?
On the occasion when one develops the supramundane (lokuttara) jhāna that leads out [of the round] (niyyānika) and goes to diminution [of rebirth] (apacayagāmī) — for the attenuation of sensual lust (kāmarāga) and ill will (byāpāda), for the attainment of the second plane (bhūmi) … for the abandonment without remainder of sensual lust and ill will, for the attainment of the third plane … for the abandonment without remainder of lust for fine-material existence (rūparāga), lust for immaterial existence (arūparāga), conceit (māna), restlessness (uddhacca), and ignorance (avijjā), for the attainment of the fourth plane — [and], quite secluded from sensual pleasures, … one enters and dwells in the first jhāna, of painful practice and sluggish direct knowledge (dukkhāpaṭipadaṃ dandhābhiññaṃ): on that occasion there is contact (phassa) … there is the perfect-knowledge faculty (aññindriya) … there is non-distraction (avikkhepa) … These phenomena are wholesome.
Because that same supramundane wholesome jhāna has been done, has been developed, [one], quite secluded from sensual pleasures, … enters and dwells in the first jhāna, [which is its] resultant (vipāka), of painful practice and sluggish direct knowledge, empty (suññata): on that occasion there is contact … there is the perfect-knower faculty (aññātāvindriya) … there is non-distraction; and whatever other dependently arisen (paṭiccasamuppanna) immaterial phenomena there are on that occasion — these phenomena are indeterminate.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.