Shiva Purana
विनतायाश्च पुत्रौ द्वावरुणो गरुडस्तथा ॥ सुपर्णः पततां श्रेष्ठो नारुणस्स्वेन कर्मणा ॥ ४३ ॥
Vinatā had two sons Aruṇa and Garuḍa. The latter was the most excellent among birds. He was terrible by virtue of his activities.
english translation
vinatAyAzca putrau dvAvaruNo garuDastathA ॥ suparNaH patatAM zreSTho nAruNassvena karmaNA ॥ 43 ॥
hk transliteration by Sanscript