Srimad-Bhagavatam: Canto 5 - Chapter 1 - Verse 29
Sanskrit:
एवमेव दधिमण्डोदात्परत: पुष्करद्वीपस्ततो द्विगुणायाम: समन्तत उपकल्पित: समानेन स्वादूदकेन समुद्रेण बहिरावृतो यस्मिन् बृहत्पुष्करं ज्वलनशिखामलकनकपत्रायुतायुतं भगवत: कमलासनस्याध्यासनं परिकल्पितम् ॥ २९ ॥
ITRANS:
evam eva dadhi-maṇḍodāt parataḥ puṣkaradvīpas tato dvi-guṇāyāmaḥ samantata upakalpitaḥ samānena svādūdakena samudreṇa bahir āvṛto yasmin bṛhat-puṣkaraṁ jvalana-śikhāmala-kanaka-patrāyutāyutaṁ bhagavataḥ kamalāsanasyādhyāsanaṁ parikalpitam.
Translation:
Outside the ocean of yogurt is another island, known as Puṣkaradvīpa, which is 6,400,000 yojanas [51,200,000 miles] wide, twice as wide as the ocean of yogurt. It is surrounded by an ocean of very tasteful water as broad as the island itself. On Puṣkaradvīpa there is a great lotus flower with 100,000,000 pure golden petals, as effulgent as the flames of fire. That lotus flower is considered the sitting place of Lord Brahmā, who is the most powerful living being and who is therefore sometimes called bhagavān.