Shatapatha Brahmana 5.5.5.16

5.5.5.16

tasyai trīṇi śatamānāni hiraṇyāni dakṣiṇā | tāni brahmaṇe dadāti na vai brahmā pracarati na stute na śaṃsatyatha sa yaśo na vai hiraṇyena kiṃ cana kurvantyatha tadyaśastasmāttrīṇi śatamānāni brahmaṇe dadāti

Three gold pieces of a hundred mânas each are the sacrificial fee for this (offering). He presents them to the Brahman; for the Brahman neither performs (like the Adhvaryu), nor chants (like the Udgâtri), nor recites (like the Hotri), and yet he is an object of respect. And with gold they do nothing, and yet it is an object of respect: therefore he presents to the Brahman three gold pieces of a hundred mânas each.