21:31
وَجَعَلْنَافِىٱلْأَرْضِرَوَٰسِىَأَنتَمِيدَبِهِمْوَجَعَلْنَافِيهَافِجَاجًاسُبُلًالَّعَلَّهُمْيَهْتَدُونَ٣١
wajaʿalnā fī l-arḍi rawāsiya an tamīda bihim wajaʿalnā fīhā fijājan subulan laʿallahum yahtadūna
And We placed within the earth firmly set mountains, lest it should shift with them, and We made therein [mountain] passes [as] roads that they might be guided.(31)