Mahabharata 3.179.5

न स्म प्रज्ञायते किंचिदम्भसा समवस्तृतेसमं वा विषमं वापि नद्यो वा स्थावराणि वा

na sma prajñāyate kiṃcidambhasā samavastṛtesamaṃ vā viṣamaṃ vāpi nadyo vā sthāvarāṇi vā

Our plain-language meaning of this verse is waiting for scholar review.