Paraskaragrihyasutra 1.19.2

1.19.2

sthālīpākaṃ śrapayitvā ' 'jyabhāgāviṣṭvā ' 'jyāhutī juhoti devīṃ vācamajanayanta devāstāṃ viśvarūpāḥ paśavo vadanti \ sā no mandreṣamūrjaṃ duhānā dhenurvāgasmānupasuṣṭutaitu svāheti \2\

Having cooked a mess of sacrificial food, and sacrificed the two Âgyabhâgas, he offers two Âgya oblations, (the first with the verse,) 'The gods have generated the goddess Speech; manifold animals speak her forth. May she, the sweet-sounding, the cow that (for milk) gives sap and juice to us, Speech, the highly-praised one, come to us. Svâhâ!'