Srimad-Bhagavatam: Canto 8 - Chapter 1 - Verse 29
Sanskrit:
पदानि त्रीणि दत्तानि भूमेर्मह्यं त्वयासुर ।द्वाभ्यां क्रान्ता मही सर्वा तृतीयमुपकल्पय ॥ २९ ॥
ITRANS:
padāni trīṇi dattānibhūmer mahyaṁ tvayāsuradvābhyāṁ krāntā mahī sarvātṛtīyam upakalpaya
Translation:
O King of the demons, you have promised to give Me three steps of land, but I have occupied the entire universe with two steps. Now think about where I should put My third.