Chandogya Upanishad (with commentary) · Chapter 4.7

ChUpBh_4,6.4 sa yaḥ kaścidyathoktaṃ pādamanantavattvena guṇenopāste sa tathaiva tadguṇo bhavatyasmiṃlloke /
mṛtaścānantavato ha lokānsa jayati ya etamevamityādi pūrvavat //4//
iti cchāndogyopaniṣadi caturthādhyāyasya ṣaṣṭha khaṇḍaḥ
4.7.1-2
haṃsaste pādaṃ vakteti sa ha śvobhūte gā abhiprasthāpayāñcakāra tā yatrābhisāyaṃ babhūvustatrāgnimupasamādhāyā gā uparudhya samidhamādhāya paścādagneḥ prāṅupopaviveśa //1 //
taṃ haṃsa upanipatyābhyuvāda satyakāma 3 iti bhagava iti ha pratiśuśrāva //2//
ChUpBh_4,7.1,2 so 'gnirhaṃsaste pādaṃ vaktetyuktavopararāma /
haṃsa ādityaḥ /
śauklyātpatanasāmānyācca /
sa ha śvobhūta ityādi samānam //1-2 //
START ChUp 4,7.3-4
brahmaṇaḥ somya te pādaṃ bravāṇīti |
bravītu me bhagavān iti |
tasmai hovāca |
agniḥ kalā |
sūryaḥ kalā |
candraḥ kalā |
vidyut kalā |
eṣa vai somya catuṣkalaḥ pādo brahmaṇo jyotiṣmān nāma

sa ya etam evaṃ vidvāṃś catuṣkalaṃ pādaṃ brahmaṇo jyotiṣmān ity upāste jyotiṣmān asmiṃl loke bhavati |
jyotiṣmato ha lokāñ jayati ya etam evaṃ vidvāṃś catuṣkalaṃ pādaṃ brahmaṇo jyotiṣmān ity upāste