Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 22
Sanskrit:
कृष्णस्तु गृहकृत्येषु व्यग्रायां मातरि प्रभु: ।अद्राक्षीदर्जुनौ पूर्वं गुह्यकौ धनदात्मजौ ॥ २२ ॥
ITRANS:
kṛṣṇas tu gṛha-kṛtyeṣuvyagrāyāṁ mātari prabhuḥadrākṣīd arjunau pūrvaṁguhyakau dhanadātmajau
Translation:
While mother Yaśodā was very busy with household affairs, the Supreme Lord, Kṛṣṇa, observed twin trees known as yamala-arjuna, which in a former millennium had been the demigod sons of Kuvera.