Al-Baqara (The Cow) Sura 2: Verse 213
"Mankind was one single community. Then God sent forth prophets as heralds of glad tidings and as warners; and with them sent down the Book with the Truth, to judge among humankind in matters in which they disputed. But none other than the selfsame people who had been granted this [revelation] began, out of mutual jealousy, to disagree about its meaning after clear signs were sent to them. Then God guided the believers to the Truth, regarding which they differed. For God guides whomsoever He will to a path that is straight.'