VaggaAnupubbābhisamayakathā

Abhidhammapiṭaka · Kathāvatthu · Vol. 37 · Section 650

[650] "Is penetration gradual (anupubbābhisamaya)?" "Yes." "Does one gradually develop the path of non-returning (anāgāmimagga)?" "It should not be said thus." … "Does one gradually develop the path of non-returning?" "Yes." "Does one gradually realize the fruition of non-returning (anāgāmiphala)?" "It should not be said thus." …

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 3 other places