Mahanidanasutta 24.11

24.11

Etarahi vā so arūpiṃ anantaṃ attānaṃ paññapento paññapeti, tattha bhāviṃ vā so arūpiṃ anantaṃ attānaṃ paññapento paññapeti, ‘atathaṃ vā pana santaṃ tathattāya upakappessāmī’ti iti vā panassa hoti.

They describe the self as formless and infinite in the present; or as sure to become formless and infinite in some other place; or else they think: ‘Though it is not like that, I will ensure it is provided with what it needs to become like that.’