Surah Al-Anbiya, ayah 108

قُلۡ إِنَّمَا يُوحَىٰٓ إِلَيَّ أَنَّمَآ إِلَٰهُكُمۡ إِلَٰهٞ وَٰحِدٞۖ فَهَلۡ أَنتُم مُّسۡلِمُونَ ١٠٨

Qul innamā yūhā ilayya annamā ilāhukum ilāhun wāhidun fahal antum muslimūn

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