Surah Al-Baqarah 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.

Translation: Saheeh International

Tafsir

When they asked him Muhammad (s) to describe his Lord the following was revealed Your God the One deserving of your worship is One God without any equal in either essence or attribute; there is no god except Him He is the Compassionate the Merciful.

Excerpt from Tafsir al-Jalalayn, commentary on 2:163, via Quran.com. The reader has the full commentary and 9 more tafsirs.