Sūta said:: It was against those treatises that followed the Śrutis and the Smṛtis. It was devoid of the discipline pertaining to the four castes and four stages of life. It was taught in it that heaven and hell are here itself.[6] There was no belief otherwise. Viṣṇu himself taught this scripture to that Puruṣa. For the destruction of the three cities he said to that Puruṣa: