Srimad Bhagavatam Canto 07, Chapter 13, Text 21

SB 7.13.21

sri-brahmana uvaca
vededam asura-srestha
 bhavan nanv arya-sammatah
ihoparamayor nrnam
 padany adhyatma-caksusa
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The saintly brahmana said: O best of the asuras, Prahlada Maharaja, who are recognized by advanced and civilized men, you are aware of the different stages of life because of your inherent transcendental eyes, with which you can see a man’s character and thus know clearly the results of acceptance and rejection of things as they are.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
A pure devotee like Prahlada Maharaja can understand the minds of others because of his pure vision in devotional service. A devotee like Prahlada Maharaja can study another man’s character without difficulty.
Srimad Bhagavatam Canto 07, Chapter 13, Text 20
Srimad Bhagavatam Canto 07, Chapter 13, Text 22