Rigveda 8.27.8

आ प्र या॑त॒ मरु॑तो॒ विष्णो॒ अश्वि॑ना॒ पूष॒न्माकी॑नया धि॒या ।इन्द्र॒ आ या॑तु प्रथ॒मः स॑नि॒ष्युभि॒र्वृषा॒ यो वृ॑त्र॒हा गृ॒णे॥

ā pra yāta maruto viṣṇo aśvinā pūṣanmākīnayā dhiyā |indra ā yātu prathamaḥ saniṣyubhirvṛṣā yo vṛtrahā gṛṇe ||

Our plain-language meaning of this verse is waiting for scholar review.