Atharvaveda 10.4.26

10.4.26

āré abhūd viṣám araud viṣé viṣám aprāg ápi |
agnír viṣám áher nír adhāt sómo nír aṇayīt |
daṃṣṭā́ram ánv agād viṣám áhir amr̥ta ||26||

He (it?) hath come to be afar; he hath obstructed the poison; he hath mixed poison in poison; Agni hath put out the snake's poison; Soma hath conducted [it] out; the poison hath gone after the biter; the snake hath died.