and he has placed firm mountains on the earth lest it should move away from you and has made rivers and tracks that you may find your way and he has set other landmarks in the earth. and by the stars too do people find their way.
وألقى في الأرض رواسي أن تميد بكم وأنهارا وسبلا لعلكم تهتدون وعلامات وبالنجم هم يهتدون