Ramayana
तदद्भुतमिवाचिन्त्यं निरैक्षन्त समागताः । मानवाः सर्वराष्ट्रेभ्यः पूर्वं कृतयुगे यथा ॥ 7-97-13 ॥
Gathered there, the men from all the kingdoms beheld that wonder, as though inconceivable, just as it had been of old in the Krita Yuga.
english translation