The Buddha's Parents Attain Nirvana
When Suddhodana had grown old, he fell sick and sent for his son
to come and see him once more before he died; and the Blessed One
came and stayed at the sick-bed, and Suddhodana, having attained
perfect enlightenment, died in the arms of the Blessed One.
And it is said that the Blessed One, for the sake of preaching to
his mother Maya-devi, ascended to heaven and dwelt with the
devas. Having concluded his pious mission, he returned to the
earth and went about again, converting those who listened to his
teachings.