Surah Al-Kahf Verse 15 - English Translation by A. J. Arberry
Surah Al-Kahfهَـٰٓؤُلَآءِ قَوۡمُنَا ٱتَّخَذُواْ مِن دُونِهِۦٓ ءَالِهَةٗۖ لَّوۡلَا يَأۡتُونَ عَلَيۡهِم بِسُلۡطَٰنِۭ بَيِّنٖۖ فَمَنۡ أَظۡلَمُ مِمَّنِ ٱفۡتَرَىٰ عَلَى ٱللَّهِ كَذِبٗا
These our people have taken to them other gods, apart from Him. Ah, if only they would bring some clear authority regarding them! But who does greater evil than he who forges against God a lie