And to (the people of) Madyan (Midian), We sent their brother Shu'aib (Shuaib). He said: "O my people! Worship Allah, and hope for (the reward of good deeds by worshipping Allah Alone, on) the last Day, and commit no mischief on the earth as Mufsidun (those who commit great crimes, oppressors, tyrants, mischief-makers, corrupts).