Narada Purana — Purva Bhaga, Shloka 110
The Exposition of Nṛsiṁha Worship-Mantras, Nyāsa, Mudrās, Yantras, Kavaca, and Nṛsiṁha Gāyatrī
रमाबीजादिकोऽनुष्टुप् त्रयस्त्रिंशार्णवान्मनुः । प्रजापतिर्मुनिश्च्छन्दोऽनुष्टुप् लक्ष्मीनृकेसरी ॥ ११० ॥
ramābījādiko'nuṣṭup trayastriṃśārṇavānmanuḥ | prajāpatirmuniścchando'nuṣṭup lakṣmīnṛkesarī || 110 ||
ラマー（ラクシュミー）の種子音（ビージャ）に始まり、韻律はアヌシュトゥブである。真言は三十三の音節単位より成り、聖見者（ṛṣi）はプラジャーパティ、詩律（chandas）はアヌシュトゥブ、主宰尊はラクシュミー＝ヌリケーサリー（ラクシュミーとナーラシンハ）である。
Narada (in dialogue context with Sanatkumara tradition; technical enumeration of mantra-lakshana)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhakti
FAQs
It gives the formal mantra-lakṣaṇa (ṛṣi, chandas, devatā, and syllable-count), establishing the correct Vedic-technical identity of the Lakṣmī–Narasimha mantra so it may be applied safely and effectively in worship.
By naming Lakṣmī–Nṛkesarī as the presiding deity, it focuses devotion on Viṣṇu’s protective Narasiṃha form united with Lakṣmī—linking mantra-recitation to reverent, deity-centered bhakti practice.
Chandas (metre) is explicitly taught: the mantra is in Anuṣṭubh; additionally, the standard mantra schema—ṛṣi (Prajāpati), chandas, devatā, and syllable-count (33)—is provided for correct ritual application.