Srimad Bhagavatam Canto 02, Chapter 09, Text 26

SB 2.9.26

tathapi nathamanasya
natha nathaya nathitam
paravare yatha rupe
janiyam te tv arupinah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
In spite of that, my Lord, I am praying to You to kindly fulfill my desire. May I please be informed how, in spite of Your transcendental form, You assume the mundane form, although You have no such form at all.
 
Srimad Bhagavatam Canto 02, Chapter 09, Text 25
Srimad Bhagavatam Canto 02, Chapter 09, Text 27