Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 17

Sanskrit:

गम्यतां शक्र भद्रं व: क्रियतां मेऽनुशासनम् । स्थीयतां स्वाधिकारेषु युक्तैर्व: स्तम्भवर्जितै: ॥ १७ ॥

gamyatāṁ śakra bhadraṁ vaḥkriyatāṁ me ’nuśāsanamsthīyatāṁ svādhikāreṣuyuktair vaḥ stambha-varjitaiḥ

Indra, you may now go. Execute My order and remain in your appointed position as King of heaven. But be sober, without false pride.

Lord Kṛṣṇa here addresses Indra in the plural form (vaḥ) because this grave instruction was meant to be a lesson for all the demigods.