Brahmanda Purana — Anushanga Pada, Shloka 1
Trailokya-vijaya Kavacha (Śrī Kṛṣṇa-kavaca) — त्रैलोक्यविजयकवचम्
इति श्रीब्रह्माण्डे महापुराणे वायुप्रोक्ते मध्यभागे तृतीय उपोद्धातपादे भार्गवचरिते द्वात्रिंशत्तमो ऽध्यायः // ३२// सगर उवाच श्रुतं सर्वं मुनिश्रेष्ठ कीर्त्यमानं त्वया विभो / कवचं वद सर्वत्र त्रैलोक्यविजयप्रदम्
iti śrībrahmāṇḍe mahāpurāṇe vāyuprokte madhyabhāge tṛtīya upoddhātapāde bhārgavacarite dvātriṃśattamo 'dhyāyaḥ // 32// sagara uvāca śrutaṃ sarvaṃ muniśreṣṭha kīrtyamānaṃ tvayā vibho / kavacaṃ vada sarvatra trailokyavijayapradam
Thus, in the Śrī Brahmāṇḍa Mahāpurāṇa, in the middle section spoken by Vāyu, in the third introductory division, in the Bhārgava narrative, ends the thirty-second chapter. Sagara said: “O best of sages, I have heard all that you have recounted; O Lord, speak the kavaca that grants victory over the three worlds everywhere.”