Quran 7, Al-A'raf (The Heights) ⓘ

7:37Who doeth greater wrong than he who inventeth a lie concerning Allah or denieth Our tokens. (For such) their appointed portion of the Book (of destiny) reacheth them till, when Our messengers come to gather them, they say: Where (now) is that to which ye cried beside Allah? They say: They have departed from us. And they testify against themselves that they were disbelievers.

فَمَنْ أَظْلَمُ مِمَّنِ افْتَرَى عَلَى اللَّهِ كَذِبًا أَوْ كَذَّبَ بِآيَاتِهِ أُولَئِكَ يَنَالُهُمْ نَصِيبُهُمْ مِنَ الْكِتَابِ حَتَّى إِذَا جَاءَتْهُمْ رُسُلُنَا يَتَوَفَّوْنَهُمْ قَالُوا أَيْنَ مَا كُنْتُمْ تَدْعُونَ مِنْ دُونِ اللَّهِ قَالُوا ضَلُّوا عَنَّا وَشَهِدُوا عَلَى أَنْفُسِهِمْ أَنَّهُمْ كَانُوا كَافِرِينَ