Mother earth assumed the form of a cow. Very much distressed, with tears in her eyes, she appeared before Lord Brahmā and told him about her misfortune.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
गौर्भूत्वाश्रुमुखी खिन्ना क्रन्दन्ती करुणं विभोः । उपस्थितान्तिके तस्मै व्यसनं स्वमवोचत
gaurbhūtvāśrumukhī khinnā krandantī karuṇaṃ vibhoḥ | upasthitāntike tasmai vyasanaṃ svamavocata
SB 10.1.18