Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 11
Sanskrit:
आत्मानं परमं ध्यायेद् ध्येयं षट्शक्तिभिर्युतम् ।विद्यातेजस्तपोमूर्तिमिमं मन्त्रमुदाहरेत् ॥ ११ ॥
ITRANS:
ātmānaṁ paramaṁ dhyāyeddhyeyaṁ ṣaṭ-śaktibhir yutamvidyā-tejas-tapo-mūrtimimaṁ mantram udāharet
Translation:
After finishing this chanting, one should think himself qualitatively one with the Supreme Personality of Godhead, who is full in six opulences and is worthy to be meditated upon. Then one should chant the following protective prayer to Lord Nārāyaṇa, the Nārāyaṇa-kavaca.