وَلَئِن أَتَيتَ الَّذينَ أوتُوا الكِتابَ بِكُلِّ آيَةٍ ما تَبِعوا قِبلَتَكَ ۚ وَما أَنتَ بِتابِعٍ قِبلَتَهُم ۚ وَما بَعضُهُم بِتابِعٍ قِبلَةَ بَعضٍ ۚ وَلَئِنِ اتَّبَعتَ أَهواءَهُم مِن بَعدِ ما جاءَكَ مِنَ العِلمِ ۙ إِنَّكَ إِذًا لَمِنَ الظّالِمينَ

Even if you were to bring to those who were given the Scripture every verse, they wouldn’t follow your direction, nor should you follow theirs. Nor do they follow one another’s direction. If you followed their desires, after the knowledge that has come to you, you would then be among the unjust.