﴿ إِنَّآ أَنزَلْنَآ إِلَيْكَ ٱلْكِتَٰبَ بِٱلْحَقِّ فَٱعْبُدِ ٱللَّهَ مُخْلِصًۭا لَّهُ ٱلدِّينَ ﴾

“for, behold, it is We who have bestowed this revela­tion upon thee from on high, setting forth the truth: so worship Him, sincere in thy faith in Him alone!”

(Lo! We have revealed the Scripture unto thee (Muhammad)) We have sent Gabriel to you with the Scripture (with truth) not with falsehood; (so worship Allah, making religion pure for Him (only)) making worship and the profession of Allah's divine Oneness sincere to Him.