Surah Az-Zumar 39:2
إِنَّآ أَنزَلْنَآ إِلَيْكَ ٱلْكِتَٰبَ بِٱلْحَقِّ فَٱعْبُدِ ٱللَّهَ مُخْلِصًا لَّهُ ٱلدِّينَ ٢
EnglishSahih International
Indeed, We have sent down to you the Book, [O Muhammad], in truth. So worship Allah, [being] sincere to Him in religion.