Shatapatha Brahmana 14.3.1.32

14.3.1.32

athāto dakṣiṇānām suvarṇaṃ hiraṇyaṃ śatamānam brahmaṇe dadātyāsīno vai brahmā yaśaḥ śayānaṃ hiraṇyaṃ tasmātsuvarṇaṃ hiraṇyaṃ śatamānam brahmaṇe dadāti

Now, then, as to the sacrificial gifts. The gold plate he gives to the Brahman; for the Brahman is seated, and gold is settled glory: therefore he gives the gold plate to the Brahman.