SB 10.55.2
sa eva jato vaidarbhyam
krsna-virya-samudbhavah
pradyumna iti vikhyatah
sarvato ’navamah pituh
Translation:
He took birth in the womb of Vaidarbhi from the seed of Lord Krsna and received the name Pradyumna. In no respect was He inferior to His father.