Jaiminīya (Talavakāra) Brāhmaṇa 2-7.234

He who performs the four-month seasonal sacrifices has indeed attained the year.
His Śunāsīrya rite is a vessel like the Mahāvrata.
As much as one obtains by the year endowed with the Mahāvrata, so much does he obtain who knows thus.
Its opening verse belongs to Sūrya; the animal victim belongs to Sūrya.
Yonder sun is indeed Āditya;
Sūrya is Indra.
The Mahāvrata belongs to Indra; thus it is made to have the same characteristic.
Into the seasons, indeed, he enters—into the year, the heavenly world—he who performs the four-month seasonal sacrifices.
He enters spring by the first day, summer by the second, the rains by the third, autumn by the fourth,
winter by the fifth, and the cool season by the sixth.
He enters the year itself by the Śunāsīrya rite.
It is an all-stoma [rite].
For all is that which is an all-stoma [rite].
He enters everything by this.
His porcupine quill has three white marks; his razor is of iron.
Every four months he shaves his hair for endlessness. Yonder Āditya is endless.
Having become endless, yonder [sun] pervades all this. [Thinking:] 'Having become endless, I shall pervade all this;
having become endless, I shall pervade all this.'

Thus ends the one-day rite.

[The section on] the Ahīna [rites].

Now these two-day rites.

Haviṣmant and Haviṣkṛt were two Āṅgirases.

While the two of them were wandering heedlessly in this world indulging in women, the Āṅgiras seers, their fathers and grandfathers,

departed to the heavenly world having done good deeds, leaving [the two] behind.

When that indulgence passed away from the two, they then desired: 'How indeed may the two of us follow to where our Āṅgiras seers, fathers,