Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 4
Sanskrit:
पत्नी विकुण्ठा शुभ्रस्य वैकुण्ठै: सुरसत्तमै: ।तयो: स्वकलया जज्ञे वैकुण्ठो भगवान्स्वयम् ॥ ४ ॥
ITRANS:
patnī vikuṇṭhā śubhrasyavaikuṇṭhaiḥ sura-sattamaiḥtayoḥ sva-kalayā jajñevaikuṇṭho bhagavān svayam
Translation:
From the combination of Śubhra and his wife, Vikuṇṭhā, there appeared the Supreme Personality of Godhead, Vaikuṇṭha, along with demigods who were His personal plenary expansions.