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 ||
以罗摩（拉克希米，Ramā/Lakṣmī）的种子音节起首，其韵律为阿努什图布（Anuṣṭubh）。此真言由三十三个音节单位组成；其圣见者（ṛṣi）为生主（Prajāpati）；其诗律（chandas）为阿努什图布；主宰本尊为拉克希米–尼利克萨丽（Lakṣmī–Nṛkesarī，即拉克希米与那罗辛哈同在）。
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.