Shatapatha Brahmana 13.5.4.10

13.5.4.10

caturviṃśāḥ pavamānāḥ trivṛdabhyāvartaṃ catuścatvāriṃśāḥ pavamānā ekaviṃśamabhyāvartamaṣṭācatvāriṃśāḥ pavamānāstrayastriṃśamabhyāvartamāgniṣṭomasāmāddyātriṃśānyukthānyekaviṃśaḥ ṣoḍaśī pañcadaśī rātristrivṛtsandhiriti

The (three) Pavamâna (stotras) in the Katurvimsa (stoma), and (those performed) by repetitions in the Trivrit; the Pavamânas in the Katuskatvârimsa (44-versed stoma), and (those performed) by repetition in the Ekavimsa; the Pavamânas in the Ashtâkatvârimsa (48), and (those performed) by repetition in the Trayastrimsa (33) up to the Agnishtoma-sâman, the Uktha (stotras) in the Dvâtrimsa (32), the Shodasin in the Ekavimsa, the night (stotras) in the Pañkadasa, and the Sandhi (stotra) in the Trivrit