Jaiminīya (Talavakāra) Brāhmaṇa 1.126.p7

1.126.p7

ṛṣirvipraḥ puraetā janānāmṛbhurdhīra uśanā kāvyena

"The seer, inspired, leader of the peoples, the clever sage Uśanā by his poetical power;