(Thwaha) 20 : 107
لَا تَرَىٰ فِيهَا عِوَجًا وَلَا أَمْتًا
You will not see in it depression or elevation.
It is told in verses 84: 1-5: “When the sky is split and its Lord has permitted to happen so. And when the earth has been flattened and has cast out whatever in it and become empty. And its Lord has permitted to happen so”. See explanation 14: 48 and 18: 8.