The Rishi Krishna Dvaipayana, regularly rising (every morning) for three years, composed this wonderful history, called Mahabharata.
त्रिभिर्वर्षेः सदोत्थायी कृष्णद्वैपायनो मुनिः। महाभारतमाख्यानं कृतवानिदमद्भुतम्॥