Atharvaveda 10.4.1

10.4.1

índrasya prathamó rátho devā́nām áparo rátho váruṇasya tr̥tī́ya ít |
áhīnām apamā́ rátha sthānúm ārad áthārṣat ||1||

Indra's [was] the first chariot, the gods' the after chariot, Varuna's the third one; the snakes' chariot, the furthest one (?), hath run against the pillar: then may it come to harm (?).