Surah Al-Anbya 21:108

قُلْ إِنَّمَا يُوحَىٰٓ إِلَىَّ أَنَّمَآ إِلَـٰهُكُمْ إِلَـٰهٌ وَٰحِدٌ ۖ فَهَلْ أَنتُم مُّسْلِمُونَ

Say, "It is only revealed to me that your god is but one God; so will you be Muslims [in submission to Him]?"

Translation: Saheeh International

Tafsir

Say ‘All that is being revealed to me is that your God is One God that is the only thing that is being revealed to me with respect to the Divine is His Oneness. So will you submit?’ will you accede to affirming the Oneness of the Divine that is being revealed to me? the interrogative is meant as an imperative.

Excerpt from Tafsir al-Jalalayn, commentary on 21:108, via Quran.com. The reader has the full commentary and 9 more tafsirs.