squandering

إِنَّ ٱلْمُبَذِّرِينَ كَانُوٓا۟ إِخْوَٰنَ ٱلشَّيَـٰطِينِ ۖ وَكَانَ ٱلشَّيْطَـٰنُ لِرَبِّهِۦ كَفُورًا

those who squander are the brothers of Satan, and Satan is most ungrateful to his Lord-

وَٱلَّذِينَ إِذَآ أَنفَقُوا۟ لَمْ يُسْرِفُوا۟ وَلَمْ يَقْتُرُوا۟ وَكَانَ بَيْنَ ذَٰلِكَ قَوَامًا

They are those who are neither wasteful nor niggardly when they spend, but keep to a just balance;