Within the house of Nanda Mahārāja, the cowherd ladies would enjoy seeing the pastimes of the babies Rāma and Kṛṣṇa. The babies would catch the ends of the calves’ tails, and the calves would drag Them here and there. When the ladies saw these pastimes, they certainly stopped their household activities and laughed and enjoyed the incidents.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यर्ह्यङ्गना दर्शनीयकुमारलीला- वन्तर्व्रजेतदबलाः प्रगृहीतपुच्छैः । वत्सैरितस्तत उभावनुकृष्यमाणौ प्रेक्षन्त्य उज्झितगृहा जहृषुर्हसन्त्यः
yarhyaṅganā darśanīyakumāralīlā- vantarvrajetadabalāḥ pragṛhītapucchaiḥ | vatsairitastata ubhāvanukṛṣyamāṇau prekṣantya ujjhitagṛhā jahṛṣurhasantyaḥ
SB 10.8.24