Agniveshyagrihyasutra 1.2.3

Now therefore we shall explain the intermediate initiation.

During the northward course of the sun, in the waxing fortnight, under an auspicious constellation, having shaved his hair, bathed, and eaten, having gathered fire, four udumbara fuel-sticks, an unwashed garment, darbha grass, clarified butter, and a water jar, having gone out in a northern direction outside the village to a place out of sight of roofs, having set up the fire, strewn [grass] around, set over the heating waters, and performed the preliminary pacification rite, then having circum-poured water and anointed the fuel-sticks, he places them on [the fire] with these four [verses beginning with]: 'The earth is the fuel-stick.'

Then, having circum-poured water and invoked the deities with: 'O Agni, lord of vows, I shall perform the vow for the Śukriya [hymns],' he wraps his head together with the face in an unwashed garment [saying]: 'You are piled up, completely piled up; O praise-loving one, let these hymns encircle you on every side.'

[Saying:] 'Growing alongside him whose life is growing, may the cherished [words] be cherished.'

[Saying:] 'You are Indra's sewing, you are Indra's fixed point, you belong to Indra, for Indra [I wrap] you,' having performed the concluding pacification rite and restrained his speech, he enters the village.

Standing or sitting, there is wakefulness.

Then on the morrow, having gone out in that very same direction to a place out of sight of roofs, having set up the fire, strewn [grass] around, set over the heating waters, and performed the preliminary pacification rite, having cast off the garment with [the verse]: 'The birds of fair wings' (vayaḥ suparṇāḥ), he worships the sun with: 'Upward from this darkness' (ud vayam tamasas pari), 'Up the bright [horses]' (ud u tyam), 'The brilliant [face]' (citram), 'That eye placed by the gods' (tac cakṣur devahitam), and 'He who has arisen' (ya udagāt).

They cause him to look sequentially upon these: fire, the sun, a millstone, a water jar, gold, a cow, and the earth.

Having performed the concluding pacification rite, he observes the vow for a year, twelve nights, or one day.

On the eighth day [and] on the new/full-moon day is the prescribed bath.

Then if he should see something impure, he mutters: 'Unbound mind, poor...'; then if it should rain upon him, he mutters: 'Wetting [waters], bestow strength.'

Sleeping on the ground [and] attendance on the teacher [are observed].

He should study the Śukriya [texts].

Having gone out in that very same direction to a place out of sight of roofs, having set up the fire, strewn [grass] around, set over the heating waters, performed the preliminary pacification rite, placed the udumbara fuel-sticks on [the fire] with these four [verses beginning with]: 'The sky is the fuel-stick,' then having circum-poured water and invoked the deities with these [words]: 'O Aditya, lord of vows, I have performed the vow for the Śukriya [hymns],' he gives a cow to the teacher.

Having performed the concluding pacification rite, the vow is completed.