Chandogya Upanishad (with commentary) · Chapter 3.3

ChUpBh_3,2.2,3 tāni vā etāni yajūṃṣyetaṃ yajurvedamabhyatapannityevamādi sarvaṃ samānam /
madhvetadādityasya dṛśyate śuklaṃ rūpam //2--3 //
iti chāndogyopaniṣadi tṛtīyādhyāyasya dvitīyaḥ khaṇḍaḥ
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START ChUp 3,3.1-3
atha ye 'sya pratyañco raśmāyas tā evāsya pratīcyo madhunāḍyaḥ |
sāmāny eva madhukṛtaḥ |
sāmaveda eva puṣpam |
tā amṛtā āpaḥ

tāni vā etāni sāmāny etaṃ sāmavedam abhyatapan |
tasyābhitaptasya yaśas teja indriyaṃ vīryam annādyaṃ raso 'jāyata

tad vyakṣarat |
tad ādityam abhito 'śrayat |
tad vā etad yad etad ādityasya kṛṣṇaṃ rūpam