Surah Al-Ma'idah, ayah 111

5:111

وَإِذۡ أَوۡحَيۡتُ إِلَى ٱلۡحَوَارِيِّـۧنَ أَنۡ ءَامِنُواْ بِي وَبِرَسُولِي قَالُوٓاْ ءَامَنَّا وَٱشۡهَدۡ بِأَنَّنَا مُسۡلِمُونَ ١١١

Wa idh awhaytu ilal-hawāriyyina an āminū bī wabirasūlī qālū āmannā washhad bi annanā muslimūn

And [remember] when I inspired to the disciples, "Believe in Me and in My messenger [i.e., Jesus]." They said, "We have believed, so bear witness that indeed we are Muslims [in submission to Allāh]."