Surah Al-Furqan — Ayah 55 (25:55)
وَيَعۡبُدُونَ مِن دُونِ ٱللَّهِ مَا لَا يَنفَعُهُمۡ وَلَا يَضُرُّهُمۡۗ وَكَانَ ٱلۡكَافِرُ عَلَىٰ رَبِّهِۦ ظَهِيرٗا ٥٥
English translation (Saheeh International)
But they worship rather than Allāh that which does not benefit them or harm them, and the disbeliever is ever, against his Lord, an assistant [to Satan].
Brief commentary
Yet instead of Allah, the disbelievers worship idols that can neither benefit them, if they follow them, nor harm them, if they go against them. The disbeliever has always followed Satan in that which angers Allah, may He be glorified.