Surah Ash-Shuraa 42:21

أَمْ لَهُمْ شُرَكَـٰٓؤُا۟ شَرَعُوا۟ لَهُم مِّنَ ٱلدِّينِ مَا لَمْ يَأْذَنۢ بِهِ ٱللَّهُ ۚ وَلَوْلَا كَلِمَةُ ٱلْفَصْلِ لَقُضِىَ بَيْنَهُمْ ۗ وَإِنَّ ٱلظَّـٰلِمِينَ لَهُمْ عَذَابٌ أَلِيمٌ

Or have they partners [i.e., other deities] who have ordained for them a religion to which Allāh has not consented? But if not for the decisive word, it would have been concluded between them. And indeed, the wrongdoers will have a painful punishment.

Translation: Saheeh International

Tafsir

Or have they the Meccan disbelievers associates — these being their devils — who have prescribed for them for the disbelievers a religion a corrupt religion which God has not given permission for? such as idolatry and denial of resurrection? And were it not for a prior decisive word in other words a prior decree to …

Excerpt from Tafsir al-Jalalayn, commentary on 42:21, via Quran.com. The reader has the full commentary and 9 more tafsirs.