On account of the entrance of the goddess of speech into their bodies, those Rishis, well conversant with penances, succeeded in composing that foremost of works in respect of words, senses and reason.
ततः प्रवर्तिता सम्यक् तपोविद्भिर्द्विजातिभिः। शब्दे चार्थे च हेतो च एषा प्रथमसर्गजा॥