Mundaka 5.06
satyameva jayati nānṛtaṃ satyena paṅthā vitato devayānaḥ। yenākramanti ṛṣayo hyāptakāmā yatra tatsatyasya paramaṃ nidhānam ॥6॥
Truth alone triumphs, not falsehood. By truth is laid out the path of the divine, on which sages, having fulfilled their desires, advance to the supreme abode of truth.
Bhāshya 5.06
Lord Vishnu is proclaimed as truth, the real, due to his good qualities. Vaikuntha is the abode of Lord Vishnu, the supreme world.
"satyo hi bhagavān viṣṇuḥ sadguṇatvāt prakīrtitaḥ। āsurāstadviruddhatvād anṛtāḥ parikīrtitāḥ। tasya viṣṇor nidhānaṃ tu vaikuṇṭho loka uttamaḥ॥"
"Indeed, the Lord Vishnu is proclaimed as truth, the real, due to his good qualities. Demons, due to opposition to that, are proclaimed as untruthful. Vaikuntha is the abode of Lord Vishnu, the supreme world."
iti ca॥
- stated thus, as well.