RV 1.155.5
द्वे इद् अस्य क्रमणे स्वर्दृशो ऽभिख्याय मर्त्यो भुरण्यति । तृतीयम् अस्य नकिर् आ दधर्षति वयश् चन पतयन्तः पतत्रिणः ॥
dve id asya kramaṇe svardṛśo 'bhikhyāya martyo bhuraṇyati | tṛtīyam asya nakir ā dadharṣati vayaś cana patayantaḥ patatriṇaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
A mortal man, when he beholds two steps of him who looks upon the light, is restless with amaze. But his third step doth no one venture to approach, no, nor the feathered birds of air who fly with wings.
Translated by Ralph T. H. Griffith (1896)