Hiranyakeshigrihyasutra 1.2.6.11

1.2.6.11

gaṇānāṃ tvā gaṇapatiṃ havāmahe \ ityenamabhimantryāthāsmai pacchogrenvāhāthārdharcaśotha saṃtatām \ bhūstatsaviturvareṇyam \ bhuvo bhargo devasya dhīmahi \ suvardhiyo yo naḥ pracodayāt \ bhūrbhuvastatsaviturvareṇyaṃ bhargo devasya dhīmahi \ suvardhiyo yo naḥ pracodayāt \ bhūrbhuvaḥ suvastatsaviturvareṇyaṃ bhargo devasya dhīmahi dhiyo yo naḥ pracodayāt \ iti \11\ \\6\\

Having recited over (the boy the verse), 'We call thee, the lord of the hosts' (Taitt. Samh. II, 3, 14, 3), he then recites (the Sâvitrî) to him, firstly Pâda by Pâda, then hemistich by hemistich, and then the whole verse (in the following way), 'Bhûs! Tat Savitur varenyam (That adorable splendour)—
'Bhuvo! Bhargo devasya dhîmahi (of the divine Savitri may we obtain)—
'Suvar! Dhiyo yo nah prakodayât (who should rouse our prayers).—
'Bhûr bhuvas! Tat Savitur varenyam bhargo devasya dhîmahi—
'Suvar! Dhiyo yo nah prakodayât.—
'Bhûr bhuvah suvas! Tat Savitur... prakodayât.'