Srimad Bhagavatam Canto 07, Chapter 15, Text 79

SB 7.15.79

krsna-parthav upamantrya
 pujitah prayayau munih
srutva krsnam param brahma
 parthah parama-vismitah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Narada Muni, being worshiped by Krsna and Maharaja Yudhisthira, bade them farewell and went away. Yudhisthira Maharaja, having heard that Krsna, his cousin, is the Supreme Personality of Godhead, was struck with wonder.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
After hearing the conversation between Narada and Yudhisthira, if one still has any doubts about Krsna’s being the Supreme Personality of Godhead, one should immediately give them up. Asamsayam samagram. Without any doubt and without any defect, one should understand Krsna to be the Supreme Personality of Godhead and thus surrender at His lotus feet. Ordinary persons do not do this, even after hearing all the Vedas, but if one is fortunate, although it may be even after many, many births, he comes to this conclusion (bahunam janmanam ante jñanavan mam prapadyate).
Srimad Bhagavatam Canto 07, Chapter 15, Text 78
Srimad Bhagavatam Canto 07, Chapter 15, Text 80