Vyasa said 'In this matter is also cited this old history. There were two brothers, viz., Shankha and Likhita of rigid vows.
व्यास उवाच अत्राप्युदाहरन्तीममितिहासं पुरातनम्। शङ्खच लिखितश्चास्तां भ्रातरौ संशितव्रतौ॥