Al An’am Ayah 114

أَفَغَيْرَ ٱللَّهِ أَبْتَغِى حَكَمًا وَهُوَ ٱلَّذِىٓ أَنزَلَ إِلَيْكُمُ ٱلْكِتَـٰبَ مُفَصَّلاً‌ۚ وَٱلَّذِينَ ءَاتَيْنَـٰهُمُ ٱلْكِتَـٰبَ يَعْلَمُونَ أَنَّهُۥ مُنَزَّلٌ مِّن رَّبِّكَ بِٱلْحَقِّ‌ۖ فَلَا تَكُونَنَّ مِنَ ٱلْمُمْتَرِينَ ١١٤ ?Say, O Prophet,? “Should I seek a judge other than Allah while He is the One Who has revealed for you the Book ?with the truth? perfectly explained?” Those who were given the Scripture know that it has been revealed ?to you? from your Lord in truth. So do not be one of those who doubt.