Shiva Purana
ततस्तस्य स्व विषये नावर्षत्पाकशासनः ॥ समा द्वादश विप्रर्षे तेनाधर्मेण वै तदा ॥ ५४॥
O brahmin sage, due to that sinful misdeed Indra did not rain in his kingdom for twelve years.
english translation
tatastasya sva viSaye nAvarSatpAkazAsanaH ॥ samA dvAdaza viprarSe tenAdharmeNa vai tadA ॥ 54॥
hk transliteration by Sanscript