﴿ أَلَّا تَعْبُدُوٓا۟ إِلَّا ٱللَّهَ ۚ إِنَّنِى لَكُم مِّنْهُ نَذِيرٌۭ وَبَشِيرٌۭ ﴾

“so that you may worship none but God. [Say, O Prophet:] "Behold, I come unto you from Him [as] a warner and a bearer of glad tidings:”

Saying ‘Worship none but God. Truly I am to you a warner from Him of chastisement if you disbelieve and a bearer of good tidings’ of reward if you believe.