Quran

 2:163

وَإِلَٰهُكُمْ إِلَٰهٌ وَاحِدٌ ۖ لَا إِلَٰهَ إِلَّا هُوَ الرَّحْمَٰنُ الرَّحِيمُ ﴿١٦٣﴾

163. Your God is one God. There is no god but He, the Compassionate, the Merciful.