Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 36
Sanskrit:
विष्णोर्वा साध्वसौ किं नु करिष्यत्यसमञ्जस: ।सौहृदं दुस्त्यजं पित्रोरहाद्य: पञ्चहायन: ॥ ३६ ॥
ITRANS:
viṣṇor vā sādhv asau kiṁ nukariṣyaty asamañjasaḥsauhṛdaṁ dustyajaṁ pitrorahād yaḥ pañca-hāyanaḥ
Translation:
Although Prahlāda is only five years old, even at this young age he has given up his affectionate relationship with his father and mother. Therefore, he is certainly untrustworthy. Indeed, it is not at all believable that he will behave well toward Viṣṇu.