فَمَنْ يَعْرِفُ أَنْ يَعْمَلَ حَسَنًا وَلَا يَعْمَلُ، فَذَلِكَ خَطِيَّةٌ لَهُ.
Therefore to him that knoweth to do good, and doeth it not, to him it is sin.