Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 34
Sanskrit:
एकदार्भकमादाय स्वाङ्कमारोप्य भामिनी ।प्रस्नुतं पाययामास स्तनं स्नेहपरिप्लुता ॥ ३४ ॥
ITRANS:
ekadārbhakam ādāyasvāṅkam āropya bhāminīprasnutaṁ pāyayām āsastanaṁ sneha-pariplutā
Translation:
One day mother Yaśodā, having taken Kṛṣṇa up and placed Him on her lap, was feeding Him milk from her breast with maternal affection. The milk was flowing from her breast, and the child was drinking it.