Quran 3:52 from Surah Aal-i-Imraan on Divine Marvels.
۞فَلَمَّآ أَحَسَّ عِيسَىٰ مِنۡهُمُ ٱلۡكُفۡرَ قَالَ مَنۡ أَنصَارِيٓ إِلَى ٱللَّهِۖ قَالَ ٱلۡحَوَارِيُّونَ نَحۡنُ أَنصَارُ ٱللَّهِ ءَامَنَّا بِٱللَّهِ وَٱشۡهَدۡ بِأَنَّا مُسۡلِمُونَ
English translation: Then when perceived Isa from them [the] disbelief he said Who (will be) my helpers to Allah Said the disciples We (will be the) helpers (of) Allah we believe[d] in Allah and bear witness that we (are) Muslims
Transliteration: falamma ahassa isa min'humu al-kuf'ra qala man ansari ila al-lahi qala al-hawariyuna nahnu ansaru al-lahi amanna bil-lahi wa-ish'had bi-anna mus'limuna