Srimad Bhagavatam Canto 10, Chapter 66, Text 24

SB 10.66.24

sa nityam bhagavad-dhyana-
bibhranas ca hare rajan
 svarupam tan-mayo ’bhavat
By constantly meditating upon the Supreme Lord, Paundraka shattered all his material bonds. Indeed, by imitating Lord Krsna’s appearance, O King, he ultimately became Krsna conscious.
Srila Prabhupada writes as follows in Krsna: “As far as Paundraka was concerned, somehow or other he always thought of Vasudeva by falsely dressing himself in imitation of the Lord. Therefore Paundraka achieved sarupya, one of the five kinds of liberation, and was thus promoted to the Vaikuntha planets, where the devotees have the same bodily features as Visnu, with four hands holding the four symbols. Factually, his meditation was concentrated on the Visnu form, but because he thought himself Lord Visnu, he was offensive. After being killed by Krsna, however, that offense was also mitigated. Thus he was given sarupya liberation, and he attained the same form as the Lord.”
Srimad Bhagavatam Canto 10, Chapter 66, Text 23
Srimad Bhagavatam Canto 10, Chapter 66, Text 25