RV 10.49.9
अहं सप्त स्रवतो धारयं वृषा द्रवित्न्वः पृथिव्यां सीरा अधि । अहम् अर्णांसि वि तिरामि सुक्रतुर् युधा विदम् मनवे गातुम् इष्टये ॥
ahaṃ sapta sravato dhārayaṃ vṛṣā dravitnvaḥ pṛthivyāṃ sīrā adhi | aham arṇāṃsi vi tirāmi sukratur yudhā vidam manave gātum iṣṭaye ||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Bull over all the streams that flow along the earth, I took the Seven Rivers as mine own domain. I, gifted with great wisdom, spread the floods abroad: by war I found for man the way to high success.
Translated by Ralph T. H. Griffith (1896)