After thus adjusting how the snake was to be held, the sons of Kaśyapa, both demigods and demons, began their activities, desiring to get nectar by churning the Ocean of Milk.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
कृतस्थानविभागास्त एवं कश्यपनन्दनाः । ममन्थुः परमायत्ता अमृतार्थं पयोनिधिम्
kṛtasthānavibhāgāsta evaṃ kaśyapanandanāḥ | mamanthuḥ paramāyattā amṛtārthaṃ payonidhim
SB 8.7.5