وَأَنزَلْنَا إِلَيْكَ الْكِتَابَ بِالْحَقِّ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ مِنَ الْكِتَابِ وَمُهَيْمِنًا عَلَيْهِ فَاحْكُم بَيْنَهُم بِمَا أَنزَلَ اللّهُ وَلاَ تَتَّبِعْ أَهْوَاءهُمْ عَمَّا جَاءكَ مِنَ الْحَقِّ لِكُلٍّ جَعَلْنَا مِنكُمْ شِرْعَةً وَمِنْهَاجًا وَلَوْ شَاء اللّهُ لَجَعَلَكُمْ أُمَّةً وَاحِدَةً وَلَكِن لِّيَبْلُوَكُمْ فِي مَآ آتَاكُم فَاسْتَبِقُوا الخَيْرَاتِ إِلَى الله مَرْجِعُكُمْ جَمِيعًا فَيُنَبِّئُكُم بِمَا كُنتُمْ فِيهِ تَخْتَلِفُونَ
﴿٤٨﴾
سورة المائدة
(5/48) And We have sent down to you the Book with the truth, confirming what is before it of the Book and a protector over it. Therefore judge between them by what Allah has sent down, and do not follow their vain desires diverging away from that which has come to you from the Truth (Hakk). For every one of you (you all) did We appoint a (single) Shariah (Divine Law) and a clear way. If Allah had willed, He would have made you one nation. But this is to test you in what He has given you. So vie with one another in good deeds. To Allah is your return all together. And He will then inform you of that in which you differed.
Surah Al-Ma'idah