Quran 2:213 from Surah Al-Baqara on Divine Marvels.
كَانَ ٱلنَّاسُ أُمَّةٗ وَٰحِدَةٗ فَبَعَثَ ٱللَّهُ ٱلنَّبِيِّـۧنَ مُبَشِّرِينَ وَمُنذِرِينَ وَأَنزَلَ مَعَهُمُ ٱلۡكِتَٰبَ بِٱلۡحَقِّ لِيَحۡكُمَ بَيۡنَ ٱلنَّاسِ فِيمَا ٱخۡتَلَفُواْ فِيهِۚ وَمَا ٱخۡتَلَفَ فِيهِ إِلَّا ٱلَّذِينَ أُوتُوهُ مِنۢ بَعۡدِ مَا جَآءَتۡهُمُ ٱلۡبَيِّنَٰتُ بَغۡيَۢا بَيۡنَهُمۡۖ فَهَدَى ٱللَّهُ ٱلَّذِينَ ءَامَنُواْ لِمَا ٱخۡتَلَفُواْ فِيهِ مِنَ ٱلۡحَقِّ بِإِذۡنِهِۦۗ وَٱللَّهُ يَهۡدِي مَن يَشَآءُ إِلَىٰ صِرَٰطٖ مُّسۡتَقِيمٍ
English translation: Was mankind a community single then raised up Allah [the] Prophets (as) bearers of glad tidings and (as) warners and sent down with them the Book in [the] truth to judge between [the] people in what they differed [in it] And (did) not differ[ed] in it except those who were given it from after [what] came to them the clear proofs (out of) jealousy among themselves And guided Allah those who believe[d] regarding what they differed [in it] of the Truth with His permission And Allah guides whom He wills to a path straight
Transliteration: kana al-nasu ummatan wahidatan faba'atha al-lahu al-nabiyina mubashirina wamundhirina wa-anzala ma'ahumu al-kitaba bil-haqi liyahkuma bayna al-nasi fima ikh'talafu fihi wama ikh'talafa fihi illa alladhina utuhu min ba'di ma jaathumu al-bayinatu baghyan baynahum fahada al-lahu alladhina amanu lima ikh'talafu fihi mina al-haqi bi-idh'nihi wal-lahu yahdi man yashau ila siratin mus'taqimin