Qur'an 2:163

وَإِلَـٰهُكُمْ إِلَـٰهٌ وَٰحِدٌ ۖ لَّآ إِلَـٰهَ إِلَّا هُوَ ٱلرَّحْمَـٰنُ ٱلرَّحِيمُ

“And your god is one God. There is no deity [worthy of worship] except Him, the Entirely Merciful, the Especially Merciful.”

Al-Baqara 2:163 · Saheeh International