KūPur, 2, 5, 37.2 cinmātramavyaktamacintyarūpaṃ khaṃ brahma śūnyaṃ prakṛtiṃ nirguṇaṃ ca //

KūPur, 2, 11, 6.1 śūnyaṃ sarvanirābhāsaṃ svarūpaṃ yatra cintyate /

KūPur, 2, 16, 67.2 naikaḥ supyācchūnyagṛhe svayaṃ nopānahau haret //

KūPur, 2, 19, 29.1 na śīrṇāyāṃ tu khaṭvāyāṃ śūnyāgāre na caiva hi /