Vishnupurana 2.2.1

2.2.1

śrīmaitreya uvāca
kathito bhavatā brahmansargaḥ svāyambhuvaś ca me /
śrotumicchāmyahaṃ tvattaḥ sakalaṃ maṇḍalaṃ bhuvaḥ //

MAITREYA.--You have related to me, Brahman, the creation of Swáyambhuva; I am now desirous to hear from you a description of the earth: how many are its oceans and islands, its kingdoms and its mountains, its forests and rivers and the cities of the gods, its dimensions, its contents, its nature, and its form.