Jaiminīya (Talavakāra) Brāhmaṇa 58.325

With the Trivṛt, the Gāyatrī was fashioned; with the Pañcadaśa, the Triṣṭubh; with the Saptadaśa, the Jagatī; with the Ekaviṃśa, the Anuṣṭubh; with the Triṇava, the Paṅkti; with the Trayastriṃśa, the Virāj; with the Pañcaviṃśa, the Bṛhatī; with the Aṣṭādaśa and the Navadaśa, the Uṣṇih and the Kakubh. Those nine Gāyatrīs of twenty-four [syllables] are Trivṛt [verses]. Then those fifteen Triṣṭubhs of forty-four [syllables] are Pañcadaśa [verses]. Then those seventeen Jagatīs of forty-eight [syllables] are Saptadaśa [verses]. Then those twenty-one Anuṣṭubhs of thirty-two [syllables] are Ekaviṃśa [verses]. Then those twenty-seven Paṅktis of forty [syllables] are Triṇava [verses]. Then those thirty-three Virājs of thirty [syllables] are Trayastriṃśa [verses]. Then those twenty-five Bṛhatīs of thirty-six [syllables] are Pañcaviṃśa [verses]. Then those eighteen and nineteen Uṣṇihs and Kakubhs of twenty-eight [syllables] are Aṣṭādaśa and Navadaśa [verses].

In the beginning, this [universe] was just one syllable: speech alone.

She desired: 'May I become many; may I reproduce; may I attain abundance; let me extend the sacrifice.'