[184] "Here, Udāyi, a bhikkhu, quite secluded from sensual pleasures … enters and dwells in the first jhāna. This, Udāyi, I say belongs to the perturbable (iñjita). And what therein belongs to the perturbable? Whatever thought and examination (vitakka-vicāra) have not yet ceased therein — this therein belongs to the perturbable. Here, Udāyi, a bhikkhu, with the stilling of thought and examination … enters and dwells in the second jhāna. This too, Udāyi, I say belongs to the perturbable. And what therein belongs to the perturbable? Whatever rapture (pīti) and pleasure have not yet ceased therein — this therein belongs to the perturbable. Here, Udāyi, a bhikkhu, with the fading away of rapture … enters and dwells in the third jhāna. This too, Udāyi, I say belongs to the perturbable. And what therein belongs to the perturbable? Whatever pleasure accompanied by equanimity (upekkhā) has not yet ceased therein — this therein belongs to the perturbable. Here, Udāyi, a bhikkhu, with the abandoning of pleasure … enters and dwells in the fourth jhāna. This, Udāyi, I say belongs to the imperturbable (aneñjita)."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.