CHĀNDOGYA UPANISHAD · 1.10.1
मटचीहतेषु कुरुष्व् आटिक्या सह जाययोषस्तिर् ह चाक्रायण इभ्यग्रामे प्रद्राणक उवास ॥
maṭacīhateṣu kuruṣv āṭikyā saha jāyayoṣastir ha cākrāyaṇa ibhyagrāme pradrāṇaka uvāsa ॥
When the Kurus had been destroyed by (hail) stones, Ushasti Kâkrâyana lived as a beggar with his virgin wife at Ibhyagrâma.
F. Max Müller · The Upanishads, Sacred Books of the East 1 (1879)