يَفْعَلُ مَا يَشَاءُ وَهُوَ غَيْرُ ظَالِمٍ أَبَدًا
He does whatever He wills and is never unjust.
لَا يُسْأَلُ عَمَّا يَفْعَلُ وَهُمْ يُسْأَلُونَ
He is not questioned about what He does, while they will be questioned. (al-Anbiyāʾ 21:23)
Allah is the sovereign owner and judge. Injustice cannot be attributed to His will or decree; servants are accountable for the deeds they choose and perform.