Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 6
ककुद: सङ्कटस्तस्य कीकटस्तनयो यत: ।भुवो दुर्गाणि यामेय: स्वर्गो नन्दिस्ततोऽभवत् ॥ ६ ॥
kakudaḥ saṅkaṭas tasyakīkaṭas tanayo yataḥbhuvo durgāṇi yāmeyaḥsvargo nandis tato ’bhavat
From the womb of Kakud came the son named Saṅkaṭa, whose son was named Kīkaṭa. From Kīkaṭa came the demigods named Durgā. From Yāmi came the son named Svarga, whose son was named Nandi.