Markandeyapurana 49.57

49.57

vārtāsvasādhitā hyanyā vṛṣṭistāsāṃ nikāmataḥ /
tāsāṃ vṛṣṭyudakānīha yāni nimnagatāni vai //

Those people ruined the trees by their strife, and afterwards pondered[39] on their means of livelihood. When the kalpa trees had utterly perished along with the honey, those people were distressed by their afflictions, and suffered from thirst and hunger. Then became manifest their perfection at the beginning of the Tretā age. For their other business was spontaneously accomplished;[40] they had rain according to their desire. The waters of their rain are the rivers[41] which flow here. By the obstruction of the rain[42] the rivers, which[43] existed on the earth scanty of water before that, became[44] deep flowing channels.