The following verse was recited in days of yore by Ushanas of Bhrigu's race, in the narrative called Ramacharita, on the subject, O Bharata, of royal duties.
श्लोकश्चायं पुरा गीतो भार्गवेण महात्मना। आख्याते राजचरिते नृपति प्रति भारत॥