Surah Qaf, ayah 28

50:28

قَالَ لَا تَخۡتَصِمُواْ لَدَيَّ وَقَدۡ قَدَّمۡتُ إِلَيۡكُم بِٱلۡوَعِيدِ ٢٨

Qāla lā takhtasimū ladayya waqad qaddamtu ilaykum bil-wa'īd

[Allāh] will say, "Do not dispute before Me, while I had already presented to you the threat [i.e., warning].