Angiras endued with great ascetic merit, had delivered this discourse to Gautama. Angiras himself had got it from the highly intelligent Kashyapa.
दत्तवान् गौतमस्यैतदङ्गिरा वै पहातपाः। अङ्गिरा: समनुज्ञातः काश्यपेन च धीमता॥