6:114
اَفَغَيۡرَ اللّٰهِ اَبۡتَغِيۡ حَكَمًا وَّهُوَ الَّذِيۡ٘ اَنۡزَلَ اِلَيۡكُمُ الۡكِتٰبَ مُفَصَّلًاؕ وَالَّذِيۡنَ اٰتَيۡنٰهُمُ الۡكِتٰبَ يَعۡلَمُوۡنَ اَنَّهٗ مُنَزَّلٌ مِّنۡ رَّبِّكَ بِالۡحَقِّ فَلَا تَكُوۡنَنَّ مِنَ الۡمُمۡتَرِيۡنَ
[Say], "Then is it other than Allah I should seek as judge while it is He who has revealed to you the Book explained in detail?" And those to whom We [previously] gave the Scripture know that it is sent down from your Lord in truth, so never be among the doubters