He was one who even in his childhood, at the age of five years, was so absorbed in the service of Lord Kṛṣṇa that when he was called by his mother for morning breakfast, he did not wish to have it.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यः पञ्चहायनो मात्रा प्रातराशाय याचितः । तन्नैच्छद्रचयन्यस्य सपर्यां बाललीलया
yaḥ pañcahāyano mātrā prātarāśāya yācitaḥ | tannaicchadracayanyasya saparyāṃ bālalīlayā
SB 3.2.2