His traveling and reaching the Place where the Sun sets (the West) Allah tells, فَأَتْبَعَ سَبَبًاSo he followed a way.Ibn Abbas said that;he followed different routes to achieve what he wanted.Mujahid said that;he followed different routes, east and west.According to one report narrated from Mujahid, he said:سَبَبًا (a way),means, "A route through the land."Qatadah said,"It means he followed the routes and landmarks of the earth.