Brahmajalasutta 3.13.4

3.13.4

Atthi kho, bho, añño attā sabbaso rūpasaññānaṃ samatikkamā paṭighasaññānaṃ atthaṅgamā nānattasaññānaṃ amanasikārā “ananto ākāso”ti ākāsānañcāyatanūpago.

There is another self which has gone totally beyond perceptions of form. With the disappearance of perceptions of impingement, not focusing on perceptions of diversity, aware that “space is infinite”, it’s reborn in the dimension of infinite space.