Jaiminīya (Talavakāra) Brāhmaṇa 2-8.357

2-8.357

And so they undertake the Virāj, which is proper food. They should not let it go until the end. The Bṛhat and Rathantara are the two sāmans; for that is prosperity, that is the path. The Śyaita and Naudhasa are the two brahma-sāmans, according to: 'clearly following the prize, making the sound of a boar.' Then, because on the third day the Rathantara would be obtained, they should take up the Vairūpa. This [earth] is indeed the Rathantara, that [sky] is the Bṛhat, and this intermediate space is the Vairūpa. It is just the essence of these two sāmans. Now, the Brahmins of ancient times called the Niṣkaraṇīyas sat for a sacrificial session. Sātyahavya Vāsiṣṭha, having approached, used to drink the Soma and run away. They laid an accusation: 'How can those who are not consecrated drink the Soma of us who are consecrated?' They took up the Vairūpa for this one day. Having approached again, he sat down merely looking on in silence. They said to him: 'Why do you not creep forward? Why do you not drink?' He said: 'You have become session-performers (sattrins); formerly it was just a prolonged soma sacrifice (dīrghasoma) for you.' Therefore, that they take up the Vairūpa on the third day is purely for the state of being a sacrificial session. These two sāmans proceed, being applied on different days: where on the Cow-day the Rathantara is obtained—