Srimad Bhagavatam Canto 05, Chapter 25, Text 02

SB 5.25.2

yasyedam ksiti-mandalam bhagavato ’nanta-murteh sahasra-sirasa ekasminn eva sirsani dhriyamanam
siddhartha iva laksyate.
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Sukadeva Gosvami continued: This great universe, situated on one of Lord Anantadeva’s thousands of hoods, appears just like a white mustard seed. It is infinitesimal compared to the hood of Lord Ananta.
Srimad Bhagavatam Canto 05, Chapter 25, Text 01
Srimad Bhagavatam Canto 05, Chapter 25, Text 03