RV 1.121.10
पुरा यत् सूरस् तमसो अपीतेस् तम् अद्रिवः फलिगं हेतिम् अस्य । शुष्णस्य चित् परिहितं यद् ओजो दिवस् परि सुग्रथितं तद् आदः ॥
purā yat sūras tamaso apītes tam adrivaḥ phaligaṃ hetim asya | śuṣṇasya cit parihitaṃ yad ojo divas pari sugrathitaṃ tad ādaḥ ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Bolt-armed, ere darkness overtook the sunlight, thou castest at the veiling cloud thy weapon, Thou rentest, out of heaven, though firmly knotted, the might of Susna that was thrown around him.
Translated by Ralph T. H. Griffith (1896)