Quran 18:15

هَـٰٓؤُلَآءِ قَوۡمُنَا ٱتَّخَذُواْ مِن دُونِهِۦۤ ءَالِهَةً۬‌ۖ لَّوۡلَا يَأۡتُونَ عَلَيۡهِم بِسُلۡطَـٰنِۭ بَيِّنٍ۬‌ۖ فَمَنۡ أَظۡلَمُ مِمَّنِ ٱفۡتَرَىٰ عَلَى ٱللهِ كَذِبً۬ا ١٥

"Here are our people setting up gods beside Him." If only they could provide a clear proof to support their stand! Who is more evil than the one who fabricates lies and attributes them to ALLAH?