The Discourse about the Great Emancipation

The Sixth Chapter for Recitation
With an unshaken heart, he endured the painful feelings,
Like a flame (when it goes out) so his mind was liberated in
Nibbāna.” 184
When the Gracious One attained Final Emancipation along with the
Emancipation venerable Ānanda spoke this verse:
“With that there was fear, with that there was horror,
When the Sambuddha, endowed with all noble qualities, attained
Emancipation.”
When the Gracious One attained Final Emancipation those monks
there who were not free from passion, throwing up their arms, falling
down (as though) cut down, rolling backwards and forwards as though
with their feet cut off, were crying: ‘Too quickly the Gracious One has
attained Final Emancipation, too quickly the Fortunate One has
attained Final Emancipation, too quickly the Visionary in the world
has disappeared!’ But those monks who were free from passion,
mindfully, with full awareness, endured, (thinking): “Impermanent are
(all) processes, how can it be otherwise?”
184 In Aggivacchasuttaṁ (MN 72) the Buddha tells Vaccha that as with a fire
that has gone out you cannot say it has gone to the East, West, North or
South, similarly with the mind of someone who is fully released you cannot
say that it will arise or not arise. The question simply doesn't apply.
178