Garuda Mahā Purana - Achara Khaṇḍa
37 - Gayatri Kalpa
Hari said:
1. Gayatri is the great goddess. All the great sins of the person who recites Gayatri are destroyed.
2. I shall now describe the Gayatri Kalpa (eulogy of Gayatri). It is conducive to enjoyment here and salvation here after. The devotee shall repeat it one thousand and eight times, or one hundred and eight times.
3. Thrice daily during the period of conjunctions he shall attain Brahmaloka. After repeating a hundred times he is allowed to take water. In the Sandhya the divine deity destroying all sins shall be invoked and worshipped.
4. Along with twelve names with her own mantra: Bhūh Bhuvah Svaḥ, Obeisance to Gayatri; obeisance to Savitri; obeisance to Sarasvati.
5. Obeisance to the mother of Vedas to Sankruti, to Brahmäni to Kaushiki, to Sadhvi, to Sarvärthasādhini (who can accomplish all desired objects), to Sahasråkşhi (having thousand eyes).
6-7. In the fire let the devotee offer the Ajya (melted ghee) and Havishyaka (food offering with Bhuḥ Bhuvaḥ Svah). In order to get all virtues and desired objects he shall pour ghee (in the fire) one thousand and eight times or one hundred and eight times,
After worshipping the idol made of sandal wood or gold.
8. The devotee shall repeat it one hundred thousand times, taking only milk, bulbous roots and fruits. Pouring twenty thousand Ahutis he shall obtain all desires.
9. (The Visarjana mantra) is: "O Goddess, born in the land of northern Summit and permitted to stay on the Mountain by Brahmă, please repair as please you".
Summary of chapter 37 of the Garuda Mahā Purana - Achara Khaṇḍa is as follows:
Bhagavān Vishṇu reveals the eight-syllabled Mantra, Om Namo Nārāyaṇāya, extolling it as the eternal boat that carries living beings safely across the ocean of worldly existence. The text describes how constant remembrance of this Mantra grants peace, dispassion, and ultimate liberation.