Transgression and excess (israf)

وَكَذَٰلِكَ نَجْزِى مَنْ أَسْرَفَ وَلَمْ يُؤْمِنۢ بِـَٔايَـٰتِ رَبِّهِۦ ۚ وَلَعَذَابُ ٱلْـَٔاخِرَةِ أَشَدُّ وَأَبْقَىٰٓ

And thus do We recompense he who transgressed and did not believe in the signs of his Lord. And the punishment of the Hereafter is more severe and more enduring.