Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 46
Sanskrit:
स्वं स्वं वत्सकुलं सर्वे पाययिष्यन्त एकदा ।गत्वा जलाशयाभ्याशं पाययित्वा पपुर्जलम् ॥ ४६ ॥
ITRANS:
svaṁ svaṁ vatsa-kulaṁ sarvepāyayiṣyanta ekadāgatvā jalāśayābhyāśaṁpāyayitvā papur jalam
Translation:
One day all the boys, including Kṛṣṇa and Balarāma, each boy taking his own group of calves, brought the calves to a reservoir of water, desiring to allow them to drink. After the animals drank water, the boys drank water there also.