Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 12-13
Sanskrit:
सर्प उवाचअहं विद्याधर: कश्चित्सुदर्शन इति श्रुत: ।श्रिया स्वरूपसम्पत्त्या विमानेनाचरन् दिश: ॥ १२ ॥ऋषीन् विरूपाङ्गिरस: प्राहसं रूपदर्पित: ।तैरिमां प्रापितो योनिं प्रलब्धै: स्वेन पाप्मना ॥ १३ ॥
ITRANS:
sarpa uvācaahaṁ vidyādharaḥ kaścitsudarśana iti śrutaḥśriyā svarūpa-sampattyāvimānenācaran diśaḥ
Translation:
The serpent replied: I am the well-known Vidyādhara named Sudarśana. I was very opulent and beautiful, and I used to wander freely in all directions in my airplane. Once I saw some homely sages of the lineage of Aṅgirā Muni. Proud of my beauty, I ridiculed them, and because of my sin they made me assume this lowly form.