Surah Ash-Shura (The Consultation), Verse 21

اَمْ لَهُمْ شُرَكٰٓؤُا شَرَعُوْا لَهُمْ مِّنَ الدِّیْنِ مَا لَمْ یَاْذَنْ بِهِ اللّٰهُ وَلَوْلَا كَلِمَةُ الْفَصْلِ لَقُضِیَ بَیْنَهُمْ وَاِنَّ الظّٰلِمِیْنَ لَهُمْ عَذَابٌ اَلِیْمٌ ۟

Am lahum shurakaaa'u shara'oo lahum minad deeni maa lam ya'zan bihil laah; wa law laa kalimatul fasli laqudiya bainahum; wa innaz zaalimeena lahum 'azaabun aleem

“What! have they partners (in godhead), who have established for them some religion without the permission of Allah? Had it not been for the Decree of Judgment, the matter would have been decided between them (at once). But verily the Wrong-doers will have a grievous Penalty.”

Quran 42:21 (Yusuf Ali Translation)