The river followed the foot-steps of the wife of the great Rishi Bhrigu; and the Grandfather of the worlds seeing, it follow the path of his son's wife, named it himself. He called it Vadhusara and it passed by the hermitage of Chyavana.
आवर्तन्ती सृति तस्या भृगोः पत्न्यास्तपस्विनः। तस्या मार्ग सृतवतीं दृष्ट्वा तु सरितं तदा॥ नाम तस्यास्तदा नद्याश्चक्रे लोकपितामहः। वधूसरेति भगवांश्च्यवनस्याश्रमं प्रति॥