Srimad-Bhagavatam: Canto 4 - Chapter 1 - Verse 31
Sanskrit:
वैदूर्यकृतसोपाना वाप्य उत्पलमालिनी: ।प्राप्तं किम्पुरुषैर्दृष्ट्वा त आराद्ददृशुर्वटम् ॥ ३१ ॥
ITRANS:
vaidūrya-kṛta-sopānāvāpya utpala-mālinīḥprāptaṁ kimpuruṣair dṛṣṭvāta ārād dadṛśur vaṭam
Translation:
They also saw that the bathing ghāṭas and their staircases were made of vaidūrya-maṇi. The water was full of lotus flowers. Passing by such lakes, the demigods reached a place where there was a great banyan tree.