योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-63, verse-21

साद्र्यब्ध्युर्वीजनं दृश्यमिदं सर्वं यथास्थितम् ।
चिरायानुभवन्त्येते यथेमे वयमादृताः ॥ २१ ॥

sādryabdhyurvījanaṃ dṛśyamidaṃ sarvaṃ yathāsthitam ,
cirāyānubhavantyete yatheme vayamādṛtāḥ 21

21. Thus this earth with its seas and mountains and peoples, that are seen to be situated in it; are thought to be as substantial as we think of ourselves by our prior notions of them.