Śatapatha Brāhmaṇa ("of a hundred paths") 4.5.2.8

4.5.2.8

taṃ jaghanena cātvālamantareṇa yūpaṃ cāgniṃ ca haranti | dakṣiṇato nidhāya pratiprasthātāvadyatyatha srucorupastṛṇīte 'tha manotāyai haviṣo 'nuvāca āhāvadyanti vaśāyā avadānānāṃ yathaiva teṣāmavadānam

They take it along the back of the pit, between the sacrificial stake and the fire. It having been put down south (of the fire), the Pratiprasthâtri cuts off the sacrificial portions. He then makes an under-layer (of ghee) in both offering-spoons, and addresses (the Hotri) for the recitation to the Manotâ deity on the havis. Thereupon they make cuttings from the portions of the cow, in the same way in which cuttings are made from them.