Surah Qaf, Verse 29

مَا يُبَدَّلُ ٱلۡقَوۡلُ لَدَيَّ وَمَآ أَنَا۠ بِظَلَّٰمٖ لِّلۡعَبِيدِ٢٩

mā yubaddalu l-qawlu ladayya wamā anā biẓallāmin lil'ʿabīdi

The word [i.e., decree] will not be changed with Me, and never will I be unjust to the servants."