Srimad Bhagavatam Canto 08, Chapter 07, Text 16

SB 8.7.16

mathyamanat tatha sindhor
 devasura-varutha-paih
yada sudha na jayeta
 nirmamanthajitah svayam
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
When nectar did not come from the Ocean of Milk, despite so much endeavor by the best of the demigods and demons, the Supreme Personality of Godhead, Ajita, personally began to churn the ocean.
Srimad Bhagavatam Canto 08, Chapter 07, Text 15
Srimad Bhagavatam Canto 08, Chapter 07, Text 17