Manavashrautasutra 7.2.3.6

7.2.3.6

patnīsam̐yājānte prāñco 'bhyudetya
ayam̐ sahasramānavo dṛśaḥ kavīnāṃ matir jyotir vidharma /
bradhnaḥ samīcīr uṣasaḥ samairayat /
arepasaḥ sacetasaḥ svasare manyumantaś citā goḥ //
ity āhavanīyam upatiṣṭhante /

At the conclusion of the patnīsaṃyājas, having stepped forward eastward, they attend upon the āhavanīya fire with: / “This one, having a thousand minds, vision, thought of the poets, light, support; / the bright one has impelled the Dawns together; / stainless, attentive, in their dwelling, full of zeal, collected from the cow.”