(Asshuara’) 26 : 115
إِنْ أَنَا إِلَّا نَذِيرٌ مُبِينٌ
“Indeed I am none except a manifest warner".
It is told in verses 51: 50-51: “So you flee to Lord Allah; indeed I am to you from Him a manifest warner. And you do not make with Allah another deity; indeed I am to you from Him a manifest warner”. See explanation 25: 56.