Valmiki Ramayana Bala Kanda Sarga 32 Shloka 9

रम्या delightful, विश्रुता renowned, सुमागधी नदी river Sumagadhi, मगधान् in Magadha, आययौ is flowing, पञ्चानाम् of the five, शैलमुख्यानाम् best of mountains, मध्ये amidst, माला इव like a garland, शोभते is shining.

The delightful and renowned river Sumagadhi (known as Sona), flowing in the country of Magadha, looks beautiful like a garland amidst five great mountains.