Pracetā's son Vālmīki composed this poem, conferring long life, together with the future story of the deity and the Uttara Kāņdam. Even Brahmă admitted this.
एतदाख्यानमायुष्यं सभविष्यं सहोत्तरम्।  कृतवान्प्रचेतसः पुत्रस्तद्ब्रह्माप्यन्वमन्यत॥