RV 5.36.5
वृषा त्वा वृषणं वर्धतु द्यौर् वृषा वृषभ्यां वहसे हरिभ्याम् । स नो वृषा वृषरथः सुशिप्र वृषक्रतो वृषा वज्रिन् भरे धाः ॥
vṛṣā tvā vṛṣaṇaṃ vardhatu dyaur vṛṣā vṛṣabhyāṃ vahase haribhyām | sa no vṛṣā vṛṣarathaḥ suśipra vṛṣakrato vṛṣā vajrin bhare dhāḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
May the strong Heaven make thee the Strong wax stronger: Strong, thou art borne by thy two strong Bay Horses. So, fair of cheek, with mighty chariot, mighty, uphold us, strong-willed, thunder armed, in battle.
Translated by Ralph T. H. Griffith (1896)