Śrīmad-Bhāgavatam · Text 10.55.3
Who is speaking and story frame
तं शम्बर: कामरूपी हृत्वा तोकमनिर्दशम् ।
स विदित्वात्मन: शत्रुं प्रास्योदन्वत्यगाद् गृहम् ॥ ३ ॥
taṁ śambaraḥ kāma-rūpī
hṛtvā tokam anirdaśam
sa viditvātmanaḥ śatruṁ
prāsyodanvaty agād gṛham
The demon Śambara, who could assume any form he desired, kidnapped the infant before He was even ten days old. Understanding Pradyumna to be his enemy, Śambara threw Him into the sea and then returned home.
Read the purport on Vedabase.ioFrom Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.