Al-Ma'idah' - 5:118

إِن تُعَذِّبْهُمْ فَإِنَّهُمْ عِبَادُكَ وَإِن تَغْفِرْ لَهُمْ فَإِنَّكَ أَنتَ الْعَزِيزُ الْحَكِيمُ
[5:118]
If Thou shouldst chastise them, then surely they are Thy servants; and if Thou shouldst forgive them, then surely Thou art the Mighty, the Wise.
"If Thou dost punish them, they are Thy servant: If Thou dost forgive them, Thou art the Exalted in power, the Wise."
If Thou punish them, lo! they are Thy slaves, and if Thou forgive them (lo! they are Thy slaves). Lo! Thou, only Thou, art the Mighty, the Wise.