Srimad Bhagavatam Canto 04, Chapter 01, Text 28

SB 4.1.28

eko mayeha bhagavan vividha-pradhanais
citti-krtah prajananaya katham nu yuyam
atragatas tanu-bhrtam manaso ’pi durad
bruta prasidata mahan iha vismayo me
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
I called for the Supreme Personality of Godhead, desiring a son like Him, and I thought of Him only. But although He is far beyond the mental speculation of man, all three of you have come here. Kindly let me know how you have come, for I am greatly bewildered about this.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Atri Muni was confidently aware that the Supreme Personality of Godhead is the Lord of the universe, so he prayed for the one Supreme Lord. He was surprised, therefore, that three of them appeared.
Srimad Bhagavatam Canto 04, Chapter 01, Text 26-27
Srimad Bhagavatam Canto 04, Chapter 01, Text 29