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.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
कृष्णस्तु गृहकृत्येषु व्यग्रायां मातरि प्रभुः । अद्राक्षीदर्जुनौ पूर्वं गुह्यकौ धनदात्मजौ
kṛṣṇastu gṛhakṛtyeṣu vyagrāyāṃ mātari prabhuḥ | adrākṣīdarjunau pūrvaṃ guhyakau dhanadātmajau
SB 10.9.22