Ramayana
ततः क्रुद्धेन तेना ऽसि शप्तः परमतेजसा । गतो ऽसि येन देवेन्द्र दशाभागविपर्ययम् ॥ 7-30-32 ॥
Then, O Indra, you were cursed in his wrath by that one of supreme splendor, on account of which you fell into the loss of a tenth part of your power.
english translation