Atharvaveda 20.91.5

20.91.5

vibhídyā púraṃ śayáthem ápācīṃ nís trī́ṇi sākám udadhér akr̥ntat |
bŕ̥haspátir uṣásaṃ sū́ryaṃ gā́m arkáṃ viveda stanáyann iva dyáuḥ ||5||

When he had cleft the lairs and western castle, he cut off three from him who held the waters. Brihaspati discovered, while he thundered like Dyaus, the dawn,. the sun, the cow, the lightning.