RV 6.37.5
इन्द्रो वाजस्य स्थविरस्य दातेन्द्रो गीर्भिर् वर्धतां वृद्धमहाः । इन्द्रो वृत्रं हनिष्ठो अस्तु सत्वा ता सूरिः पृणति तूतुजानः ॥
indro vājasya sthavirasya dātendro gīrbhir vardhatāṃ vṛddhamahāḥ | indro vṛtraṃ haniṣṭho astu satvā tā sūriḥ pṛṇati tūtujānaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Indra is hewho gives enduring vigour: may our songs magnify the God Most Mighty. Best Vrtra-slayer be the Hero Indra these things he gives as Prince, with strong endeavour.
Translated by Ralph T. H. Griffith (1896)