﴿ قُلْ يَٰٓأَيُّهَا ٱلنَّاسُ إِن كُنتُمْ فِى شَكٍّۢ مِّن دِينِى فَلَآ أَعْبُدُ ٱلَّذِينَ تَعْبُدُونَ مِن دُونِ ٱللَّهِ وَلَٰكِنْ أَعْبُدُ ٱللَّهَ ٱلَّذِى يَتَوَفَّىٰكُمْ ۖ وَأُمِرْتُ أَنْ أَكُونَ مِنَ ٱلْمُؤْمِنِينَ ﴾

“SAY [O Prophet]: "O mankind! If you are in doubt as to what my faith is, then [know that] I do not worship those beings whom you worship beside God, but [that] I worship God alone, who shall cause you [all] to die: for I have been bidden to be among those who believe [in Him alone]."”

Please check ayah 10:107 for complete tafsir.