Vishnupurana 6.1.1

6.1.1

atha śrīviṣṇumahāpurāṇe viṣṇucittyātmaprakāśākhyaśrīdharīya vyākhyādvayopete ṣaṣṭhāṃśaḥ prārabhyate /
śrīmate rāmānujāya namaḥ
maitreya uvāca
vyākhyātā bhavatā sargavaṃśamanvantarasthitiḥ /
vaṃśānucaritaṃ caiva vistareṇa mahāmune //

MAITREYA.--You have narrated to me, illustrious sage, the creation of the world, the genealogies of the patriarchs, the duration of the Manwantaras, and the dynasties of princes, in detail. I am now desirous to hear from you an account of the dissolution of the world, the season of total destruction, and that which occurs at the expiration of a Kalpa.