“You will see therein no crookedness” (lā tarā fīhā ʿiwajā). Ibn ʿAbbās said: The ʿiwaj is the valley. “Nor any unevenness” (wa lā amtā). Mujāhid said: It means: an elevation.
﴿لَا ترى فِيهَا عوجا﴾ قَالَ ابْنُ عَبَّاسٍ: الْعِوَجُ: الْوَادِي ﴿وَلَا أمتا﴾ قَالَ مُجَاهِد: يَعْنِي: ارتفاعا