Srimad Bhagavatam Canto 11, Chapter 16, Text 03

SB 11.16.3

yesu yesu ca bhutesu
 bhaktya tvam paramarsayah
upasinah prapadyante
 samsiddhim tad vadasva me
 
Translation: 
 
Please tell me of the perfections that great sages achieve by worshiping You with devotion. Also, kindly explain which of Your different forms they worship.
 
Purport: 
 
Sri Uddhava here inquires about the spiritual opulences of the Lord, which consist primarily of His visnu-tattva expansions such as Vasudeva, Sankarsana, Pradyumna and Aniruddha. By worshiping different plenary expansions of the Lord one achieves particular perfections, and Sri Uddhava wants to know about this.
Srimad Bhagavatam Canto 11, Chapter 16, Text 02
Srimad Bhagavatam Canto 11, Chapter 16, Text 04