Jaiminīya (Talavakāra) Brāhmaṇa 25.155

For it he sought a support. For it he found the waters. In them he sought a support with the Rathantara; he did not find [it]. In them, with the Bṛhat, he did not find [it]. In them, with the Vairūpa, he did not find [it]. In them, with the Vairāja, he did not find [it]. In them, with the Mahānāmnīs, he did not find [it]. In them, with the Revatīs, he did not find [it] at all. In them, with the Vāravantīya, he indeed found [it]. In that he found [it], that is the Vāravantīya-nature of the Vāravantīya. In this [earth] they establish the sacrifice. Fire indeed is Vaiśvānara, which is the Vāravantīya; and the waters are the Revatīs. Therefore, when the Vāravantīya is [sung] upon the Revatīs, hence the waters have fire as their womb. The pṛṣṭhas, as it were, grow old when they come to the sixth day. Surely, no semen remains in an old man. In that the Vāravantīya is the pṛṣṭha, [it is] for the propagation of the further sacrificial rites.

And concerning this, Abhipratārin said, lying decrepit:

His sons were dividing the inheritance.

There was a noise.

"What is the noise?" [he asked].

They said to him: "Sir, your sons are dividing the inheritance."

He said: "I have heard well from the Brāhmaṇa of the pṛṣṭhas: while he is living, his sons

come to [divide] the inheritance."

"I have heard that well."

This is just as they would come to the inheritance of one living: thus it is that, when it is the Raivata day, the Vāravantīya becomes the pṛṣṭha,

it is.

and they perform the other in the Pavamāna.

Now Gaireya Āṣāḍhi asked Aṣāḍha Bhāllabeya: "Since there are these many sāmans,

how is it that they were not sufficient for the sixth day?"

He said: "Six kings like you are known among the Pañcālas."

He said: "Thus you know [it] as deficient; we know [it] differently from that.