﴿ قُلْ إِنَّمَآ أَنَا۠ مُنذِرٌۭ ۖ وَمَا مِنْ إِلَٰهٍ إِلَّا ٱللَّهُ ٱلْوَٰحِدُ ٱلْقَهَّارُ ﴾

“SAY [O Muhammad]: “I am only a warner; and there is no deity whatever save God, the One, who holds absolute sway over all that exists,”

Please check ayah 38:70 for complete tafsir.