Jaiminīya (Talavakāra) Brāhmaṇa 1.178

1.178

tadāhurnaitadādriyeta
yadvāva vāṅnidhanaṃ bhavati tenaiva saṃdhīyata iti
tadāhuryathāpūrvaṃ yathājyaiṣṭhyaṃ chandāṃsi vimucyamānāni
chandasāṃ kḷhiptaṃ vimuktimanu prajāḥ kalpāntā iti
yajño vo agnaye iti ṣaḍbhirakṣaraiḥ prastauti
girā ca dakṣase iti ṣaḍbhirakṣarairādimādatte
taddvādaśa saṃpadyante
dvādaśākṣarā jagatī
jagatīṃ prathamataḥ paryūhanti
tajjagatyā vimucyante
pra vayamamṛtaṃ jātavedasamityekādaśākṣarāṇi saṃpadyante
ekādaśākṣarā triṣṭup
tattriṣṭubhā vimucyante
priyaṃ mitraṃ nu śaṃsiṣamityaṣṭābhirakṣarairnidhanamupayanti
aṣṭākṣarā gāyatrī
tadgāyatryā vimucyante
tadyathāpūrvaṃ yathājyaiṣṭhyaṃ chandāṃsi vimucyamānāni yanti
chandasāṃ kḷhiptaṃ vimuktimanu prajāḥ kalpante nāparāmārī pūrvī mriyate

Regarding this they say: 'One should not heed that. / By the fact that speech is the finale (nidhana), it is joined together.' / Regarding this they say: 'As the meters are unyoked according to the prior, according to seniority, following the proper unyoking of the meters the offspring prosper.' / With six syllables he chants the prelude: 'yajño vo agnaye'. / With six syllables he takes up the beginning: 'girā ca dakṣase'. / That amounts to twelve. / The Jagatī consists of twelve syllables. / They sweep around the Jagatī at the beginning. / Thereby they are unyoked with the Jagatī. / 'pra vayamamṛtaṃ jātavedasam' amounts to eleven syllables. / The Triṣṭubh consists of eleven syllables. / Thereby they are unyoked with the Triṣṭubh. / With eight syllables they reach the finale: 'priyaṃ mitraṃ nu śaṃsiṣam'. / The Gāyatrī consists of eight syllables. / Thereby they are unyoked with the Gāyatrī. / Thus the meters go, being unyoked according to the prior, according to seniority. / Following the proper unyoking of the meters offspring prosper; a younger woman does not die before an older one.