Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 19

Sanskrit:

सौदामन्या यथाक्लाशे यान्त्या हित्वाभ्रमण्डलम् ।गतिर्न लक्ष्यते मर्त्यैस्तथा कृष्णस्य दैवतै: ॥ ९ ॥

ITRANS:

saudāmanyā yathākāśeyāntyā hitvābhra-maṇḍalamgatir na lakṣyate martyaistathā kṛṣṇasya daivataiḥ

Translation:

Just as ordinary men cannot ascertain the path of a lightning bolt as it leaves a cloud, the demigods could not trace out the movements of Lord Kṛṣṇa as He returned to His abode.

Purport:

The sudden movements of a lightning bolt are seen by the demigods but not by human beings. Similarly, the sudden departure of Lord Kṛṣṇa could be understood by the Lord’s intimate associates in the spiritual sky but not by the demigods.