All religions of the world provide for a code of behaviour to be followed by an individual in this life. So does Islam. But the most prominent differentia possessed by Islamic Ethics is that it basis all moral activity on the conception of the life Hereafter, so as to confine the actions in this life to what would earn a life of eternal peace in the existence Hereafter.
Needless to say, the conception of the life hereafter is based on the belief In God or Almighty Allah as Islam puts it. Therefore the ethics of human behaviour taught by Islam: presupposes the ever present consciousness by an individual of the existence of Allah as Omnipresent, Omniscient and as representing the highest good from the most ideological point of view.