Surah Az-Zumar (The Successive Groups), Verse 11

قُلْ اِنِّیْۤ اُمِرْتُ اَنْ اَعْبُدَ اللّٰهَ مُخْلِصًا لَّهُ الدِّیْنَ ۟

Qul inneee umirtu an a'budal laaha mukhlisal lahud deen

“Say: "Verily, I am commanded to serve Allah with sincere devotion;”

Quran 39:11 (Yusuf Ali Translation)