Garudapurana 1.217.3

1.217.3

The metre is Gāyatrī; the ṛṣi is Viśvāmitra; it has three feet. / The oceans are the belly; the moon and sun are the eyes; / fire is the mouth; / Viṣṇu is the heart; / Brahmā and Rudra are the head; / Rudra is the topknot. / The application is in the sacred thread ceremony. / Oṃ bhūḥ, on the feet; / bhuvaḥ, on the knees; / svaḥ, on the heart; / mahaḥ, on the head; / janaḥ, on the topknot; / tapaḥ, on the throat; / satyam, on the forehead. / Oṃ, to the heart, namaḥ; / oṃ bhūḥ, to the head, svāhā; / oṃ bhuvaḥ, to the topknot, vauṣaṭ; / oṃ svaḥ, to the armour, huṃ; / oṃ bhūrbhuvaḥ svaḥ, to the weapon, phaṭ.