Skandapurana 5.37.3

5.37.3

yajñavidyāvido'nye'pi yajñākhyānaparāyaṇāḥ ..
tatra viprāḥ pradṛśyaṃte śataśo brahmavādinaḥ .. 3 ..

others, knowers of sacrificial lore, were dedicated to explaining sacrifices; / there brahmins speaking on Brahman were seen by the hundreds;