“And what is the path that leads to the unconditioned? “Katamo ca, bhikkhave, asaṅkhatagāmimaggo? Emptiness immersion; signless immersion; undirected immersion. …” Suññato samādhi, animitto samādhi, appaṇihito samādhi—ayaṁ vuccati, bhikkhave, asaṅkhatagāmimaggo …pe….

Catutthaṁ.