Matsya Purana 249.80

249.80

ṛte nārāyaṇāt sarve daityā devottamāstathā.
cirāyitamidañcāpi sāgarasya tu manthanam .. 249.80 ..

The Devas then said to Brahmâ:—“We all feel quite exhausted and the nectar has not yet come out. Excepting Nârâyaṇa the Devas and the Daityas won’t get nectar, even if they go on churning for a long long period.” Hearing which Brahmâ prayed to Nârâyaṇa: “You are the supporter of them all, therefore, be pleased to impart them strength.”—79-81