Garudapurana 1.31.7

1.31.7

aṅganyāsaṃ tataḥ kuyyāndebhirmantraurvicakṣaṇaḥ /
oṃ hāṃ hṛdayāya namaḥ /
oṃ hīṃ śirase svāhā /
oṃ hūṃ śikhāyai vaṣaṭ /
oṃ haiṃ kavacāya huṃ /
oṃ hauṃ netratrayāya vauṣaṭ /
oṃ haḥ astrāya phaṭ //

The discerning one should then perform the placement on the limbs with these mantras: / "Oṃ hāṃ to the heart, namaḥ!" / "Oṃ hīṃ to the head, svāhā!" / "Oṃ hūṃ to the tuft of hair, vaṣaṭ!" / "Oṃ haiṃ to the armour, huṃ!" / "Oṃ hauṃ to the three eyes, vauṣaṭ!" / "Oṃ haḥ to the weapon, phaṭ!"