إِنَّ ٱلْمُبَذِّرِينَ كَانُوٓا۟ إِخْوَٰنَ ٱلشَّيَـٰطِينِ ۖ وَكَانَ ٱلشَّيْطَـٰنُ لِرَبِّهِۦ كَفُورًا
Innal mubazzireena kaanoo ikhwaanash shayaateeni wa kaanash shaytaanu li Rabbihee kafooraa
The wasteful are brothers of the devils, and the devil is ungrateful to his Lord.
Early readings distinguish tabdhir from ordinary excess: Ibn Abbas and others are reported to have glossed it as spending in the wrong place, however small the sum, while israf is overspending in a right one. Placement supports that, since the warning sits between a command to give relatives their due and a caution two verses on against the closed hand. Kinship language then frames waste as company one keeps rather than one bad decision.