[199] On one occasion the Blessed One was dwelling at Rājagaha, in the Bamboo Grove (Veḷuvana), at the Squirrels' Feeding Ground (Kalandakanivāpa). Then Soṇa the householder's son approached the Blessed One; having approached and paid homage to the Blessed One, he sat down to one side. Sitting to one side, Soṇa the householder's son said this to the Blessed One: "What now, venerable sir, is the cause, what is the condition, whereby some beings here do not attain final Nibbāna (parinibbāna) in this very life? And what, venerable sir, is the cause, what is the condition, whereby some beings here do attain final Nibbāna in this very life?"
(This should be expounded in full just as in the preceding sutta.)
The fifth.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.