Shiva Purana
ततो निशुंभो हृदये व्यचिन्तयत्करालकालोयमुपागतोऽधुना ॥ भवेद्दरिद्रोऽपि महाधनो महाधनो दरिद्रो विपरीतकालतः ॥ २३॥
Then Niśumbha thought to himself—“A terrible period has set in now. Even a poor man may become rich and rich man poor if the time is adverse.
english translation
tato nizuMbho hRdaye vyacintayatkarAlakAloyamupAgato'dhunA ॥ bhaveddaridro'pi mahAdhano mahAdhano daridro viparItakAlataH ॥ 23॥
hk transliteration by Sanscript