Quran 3, Ali 'Imran (House of Imran)

3:4 Before, as guidance for the people. And He revealed the Qur'an. Indeed, those who disbelieve in the verses of Allah will have a severe punishment, and Allah is exalted in Might, the Owner of Retribution.

مِنْ قَبْلُ هُدًى لِلنَّاسِ وَأَنْزَلَ الْفُرْقَانَ إِنَّ الَّذِينَ كَفَرُوا بِآيَاتِ اللَّهِ لَهُمْ عَذَابٌ شَدِيدٌ وَاللَّهُ عَزِيزٌ ذُو انْتِقَامٍ