ŚiraUpan, 1, 33.1 bhas te ādir madhyaṃ bhuvas te svas te śīrṣaṃ viśvarūpo 'si brahmaikas tvaṃ dvidhā tridhā vṛddhis tvaṃ śāntis tvaṃ puṣṭis tvaṃ hutam ahutaṃ dattam adattaṃ sarvam asarvaṃ viśvam aviśvaṃ kṛtam akṛtaṃ param aparaṃ parāyaṇaṃ ca tvam /

ŚiraUpan, 1, 35.9 atha kasmād ucyate paraṃ brahma yasmāt param aparaṃ parāyaṇaṃ ca bṛhad bṛhatyā bṛṃhayati tasmād ucyate paraṃ brahma /

ŚiraUpan, 1, 36.13 tad etad upāsīta munayo vāgvadanti na tasya grahaṇam ayaṃ panthā vihita uttareṇa yena devā yānti yena pitaro yena ṛṣayaḥ param aparaṃ parāyaṇaṃ ceti //