Atharvaveda 20.56.3

20.56.3

yád udī́rata ājáyo dhr̥ṣṇáve dhīyate dhánā |
yukṣvā́ madacyútā hárī káṃ hánaḥ káṃ vásau dadho 'smā́m̐ indra vásau dadhaḥ ||3||

When war and battles are on foot, booty is laid before the bold. Yoke thou thy wildly rushing Bays. Whom wilt thou slay and whom enrich? Do thou, O Indra, make us rich,