Atharvaveda 7.1.2

7.1.2

sá veda putráḥ pitáraṃ sá mātáraṃ sá sūnúr bhuvat sá bhuvat púnarmaghaḥ |
sá dyā́m aurṇod antárikṣaṃ svàḥ sá idáṃ víśvam abhavat sá ā́bharat ||2||

He, [as a] son, knows his father, he his mother; he is (bhuvat) a son (sūnú), he is one of generous returns (? púnarmagha); he enveloped the sky, the atmosphere, he the heaven (svàr); he became this all; he came to be here (ā-bhū).