Atharvaveda 7.68: sūktaṃ 7.068(7.066)

7.68.1

yadyantarikṣe yadi vāta āsa yadi vṛkṣeṣu yadi volapeṣu .
yadaśravan paśava udyamānaṃ tadbrāhmaṇaṃ punarasmān upaitu ..1..