Jaiminīya (Talavakāra) Brāhmaṇa 41.237

They also call it the sāman of the Āṅgirasīs. The Āṅgirasīs were daughters of the ṛṣis. They desired: 'May we reach the heavenly world.' They saw this sāman. With it they praised. Thereupon they reached the heavenly world. This is a heavenly sāman. He who knows this reaches the heavenly world. Because the Āṅgirasīs saw it, therefore it is called the sāman of the Āṅgirasīs. They also call it the Māruta. The Maruts desired: 'May we become the most vigorous, strongest, most numerous, most powerful among the gods; may we conquer the heavenly world.' They saw this sāman. With it they praised. Thereupon they became the most vigorous, strongest, most numerous, most powerful among the gods; they conquered the heavenly world. He who knows this becomes the most vigorous, strongest, most numerous, most powerful among his own people, and conquers the heavenly world. Because the Maruts saw it, therefore it is called Māruta.

They also call it Vaiśvāmitra.

The Bharatas were on the further bank of the Sindhu, hemmed in by the Ikṣvākus.

Viśvāmitra and Jamadagni were dwelling among them.

Now Indra begged two bay steeds from Bhayadāma Asamātya.

He did not give them to him.

Because the two were not given, he called out at [the place called] Indrakrośa:

Standing in that place, [he said:] 'Viśvāmitra and Jamadagni, these cows of the Ikṣvākus—

find them!'

The two, being on the further bank, heard it.

They said to the Bharatas: 'Indra is indeed calling us two: "Find these cows of the Ikṣvākus!"

Come! Let us find the cows.'

[The Bharatas said:] 'Make this ford shallow for us.'

[The two said:] 'Yoke your chariots!'

They yoked them.

They went down [to the water].

The two said: 'Throw away whatever washing-troughs you have.'

They threw them away.