ديغا نيكايا 1:645
SUJATOSabbaso viññāṇañcāyatanaṁ samatikkamma ‘natthi kiñcī’ti ākiñcaññāyatanaṁ upasampajja viharati,
Going totally beyond the dimension of infinite consciousness, aware that ‘there is nothing at all’, they enter and remain in the dimension of nothingness.