Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 32

Sanskrit:

एवं सुमन्त्रितार्थास्ते गुरुणार्थानुदर्शिना ।हित्वा त्रिविष्टपं जग्मुर्गीर्वाणा: कामरूपिण: ॥ ३२ ॥

ITRANS:

evaṁ sumantritārthās teguruṇārthānudarśināhitvā tri-viṣṭapaṁ jagmurgīrvāṇāḥ kāma-rūpiṇaḥ

Translation:

Śukadeva Gosvāmī continued: The demigods, being thus advised by Bṛhaspati for their benefit, immediately accepted his words. Assuming forms according to their desire, they left the heavenly kingdom and scattered, without being observed by the demons.

Purport:

The word kāma-rūpiṇaḥ indicates that the demigods, the inhabitants of the heavenly planets, can assume any form they desire. Thus it was not at all difficult for them to remain incognito before the eyes of the demons.