[1420] One who abandons the grief faculty (domanassindriya) — will that one develop the perfect-knowledge faculty (aññindriya)?
Yes.
Or rather, one who will develop the perfect-knowledge faculty — does that one abandon the grief faculty?
Six persons will develop the perfect-knowledge faculty, but they do not abandon the grief faculty. One endowed with the path of non-returning (anāgāmimagga) will develop the perfect-knowledge faculty and abandons the grief faculty.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.