Ramayana
कामरूपः कामचारी कामगः प्लवतां वरः । भवत्यव्याहतगतिः कीर्तिमांश्च भविष्यति ॥ 7-36-24 ॥
He shall be able to assume any form at will, to move at will, and to go wherever he wishes, the best of those who leap; his motion shall be unobstructed, and he shall become renowned.
english translation