Taittirīyopaniṣat 01.03
saha nau yaśaḥ। saha nau brahmavarcasam। athātaḥ saṃ hitāyā upaniṣadaṃ vyākhyāsyāmaḥ। pañcasvadhikaraṇeṣu। adhilokamadhijyautiṣamadhividyamadhiprajamadhyātmam। tā mahāsaṃhitā ityācakṣate ॥3॥
May we both attain glory together. May we both attain spiritual radiance together. Now, therefore, we shall explain the Upaniṣad (secret teaching) of the Saṃhitā. It is in five topics: concerning the worlds, concerning the luminaries, concerning the knowledge, concerning the progeny, and concerning the self. These they call the great Saṃhitās. Thus (it is said).
Taittirīya Bhāshya 01.03
A testimonial is referenced that elaborates on the fivefold form of the Supreme Lord Nārāyaṇa (Nārāyaṇa, Vāsudeva, Sankarshana, Pradyumna, and Aniruddha) that governs the five topics mentioned.
"nārāyaṇādirūpāṇi lokādiṣu ca pañcasu। aniruddhāvasānāni dhyeyāni caturātmanā॥
"The forms of the Supreme Lord Nārāyaṇa, in the five categories of worlds, ending with Aniruddha, are to be meditated upon by the one with four forms.
vāsudevādikānyeva tāni pūrvottarārṇayoḥ। saṁhitāyāstathā sandhau saṁdhāne cāpi krutsnaśaḥ॥
Indeed, only those beginning with Vāsudeva are in the earlier and later sections; likewise, in the Saṁhitā, at the junction and in the joining, also entirely.
yo vedaitāni rūpāṇi sarvabhūgasamanvitaḥ। prāpnoti vaiṣṇvaṃ sthānaṃ muktaḥ svargābhidhaṃ param॥"
Whoever knows these forms, endowed with all enjoyments, attains the supreme abode of Lord Viṣṇu, called heaven, and is liberated."
