Aitareyabrahmana 3.15

3.15

Indra, having slain Vṛtra, thinking 'I have not laid him low,' went to the farthest distances.
He went to the supreme distance.
The anuṣṭubh is the supreme distance, speech is the anuṣṭubh.
Having entered into speech, he lay down; all beings sought him out, dividing themselves.
The Fathers found him on the previous day; the gods [found him] on the following day.
Therefore the rite is performed for the Fathers on the previous day, and they sacrifice to the gods on the following day.
They said:
'Let us press [Soma]; thus indeed he will come to us most swiftly.' [They said:] 'So be it.'
They pressed [Soma]. By 'To you, as to a chariot, for help' they turned him toward themselves;
by 'Here, O bright one, is the pressed soma drink' he appeared to them at the mention of what was pressed;
by 'O Indra, come nearer here' they brought him into their midst.
He sacrifices with a sacrifice that has reached Indra,
he prospers through a sacrifice accompanied by Indra, who knows thus.
When Indra had slain Vṛtra, all the deities, thinking 'He has not laid him low,' abandoned him.
Only the Maruts, his close companions, did not abandon him.
The vital breaths are the Maruts, his close companions; the vital breaths indeed did not abandon him then.
Therefore this unchangeable pragātha verse-pair containing [the word] 'close companion' is recited:
'Come, O close companion, with close companions.'
Even if after this a metre dedicated to Indra alone is recited,
it all belongs to the Maruts,
if this unchangeable pragātha verse-pair containing [the word] 'close companion' is recited:
'Come, O close companion, with close companions.'