Jaiminīya (Talavakāra) Brāhmaṇa 6.22.p1

6.22.p1

vṛṣā pavasva dhāraye
ti mādhyandinasya pavamānasya vṛṣaṇvatīrgāyatryo bhavanti
bārhataṃ vā etadahaḥ
traiṣṭubhaṃ kṣatrasya rūpam
marutvate ca matsara
iti marutvatīrbhavanti
marutvadvai madhyaṃdinasya rūpam
madhyandinasyaiva tadrūpānna yanti
taṃ tvā dhartāramoṇyor
ityahna eva dhṛtyai
ayā citto vipānayā hariḥ pavasva dhāraye
ti harivatīrbhavanti
harivadvai triṣṭubho rūpam
traiṣṭubhametadahaḥ

"As a bull purify yourself in a stream":
thus there are bull-possessing Gāyatrī verses for the midday pavamāna.
For this day is connected to the Bṛhat.
[The bull] is the Triṣṭubh form of the ruling class.
"And for the Marut-possessing [Indra], intoxicating":
thus there are [verses] containing the word "Marut-possessing".
"Marut-possessing", indeed, is the form of midday.
They do not depart from the form of the midday.
"Thee, the upholder of the two press-stones":
thus [it is] for the stability of the day.
"With this thought, purifying, golden-hued, purify yourself in a stream":
thus there are [verses] containing the word "hari" [golden-hued].
"Hari-possessing", indeed, is the form of the Triṣṭubh.
This day is connected to the Triṣṭubh.