Bhishma said I have heard of this subject from Jamadagni's son Rama while he described it from the celestial saint Narada and from Krishna-Dvaipayana. to
भीष्म उवाच श्रुतोऽयमर्थो रामस्य जामदग्न्यस्य जल्पतः। नारदस्य च देवर्षेः कृष्णद्वैपायनस्य च॥