Surah At-Tawbah — Ayah 129 (9:129)
فَإِن تَوَلَّوۡاْ فَقُلۡ حَسۡبِيَ ٱللَّهُ لَآ إِلَٰهَ إِلَّا هُوَۖ عَلَيۡهِ تَوَكَّلۡتُۖ وَهُوَ رَبُّ ٱلۡعَرۡشِ ٱلۡعَظِيمِ ١٢٩
English translation (Saheeh International)
But if they turn away, [O Muḥammad], say, "Sufficient for me is Allāh; there is no deity except Him. On Him I have relied, and He is the Lord of the Great Throne."
Brief commentary
If they reject you O Messenger, not believing in what you come with, then say: 'Allah is sufficient for me, there is nothing worthy of worship except Him. I rely on Him alone, and He, Glory be to Him, is the Lord of the Great Throne.'