Surah Az-Zumar 39:11

قُلْ إِنِّىٓ أُمِرْتُ أَنْ أَعْبُدَ ٱللَّهَ مُخْلِصًا لَّهُ ٱلدِّينَ

Say, [O Muḥammad], "Indeed, I have been commanded to worship Allāh, [being] sincere to Him in religion.

Translation: Saheeh International

Tafsir

Say ‘Indeed I have been commanded to worship God devoting my religion purely to Him pure of any idolatry

Excerpt from Tafsir al-Jalalayn, commentary on 39:11, via Quran.com. The reader has the full commentary and 9 more tafsirs.