Tafsir of Al-An'am 6:11

Say: "Travel in the land and see what was the end of those who rejected truth.'' meaning, contemplate about yourselves and think about the afflictions Allah struck the previous nations with, those who defied His Messengers and denied them. Allah sent torment, afflictions and punishment on them in this life, as well as the painful torment in the Hereafter, while saving His Messengers and believing servants