2 : 145
وَلَئِنۡ أَتَيۡتَ ٱلَّذِينَ أُوتُواْ ٱلۡكِتَٰبَ بِكُلِّ ءَايَةٖ مَّا تَبِعُواْ قِبۡلَتَكَۚ وَمَآ أَنتَ بِتَابِعٖ قِبۡلَتَهُمۡۚ وَمَا بَعۡضُهُم بِتَابِعٖ قِبۡلَةَ بَعۡضٖۚ وَلَئِنِ ٱتَّبَعۡتَ أَهۡوَآءَهُم مِّنۢ بَعۡدِ مَا جَآءَكَ مِنَ ٱلۡعِلۡمِ إِنَّكَ إِذٗا لَّمِنَ ٱلظَّٰلِمِينَ
Even if you were to bring every proof to those who have been given the Scripture, they would not follow your prayer direction, nor would you follow their prayer direction; nor would any of them follow the prayer direction of the other. However, if you were to follow their desires after the knowledge that has come to you, then you would surely be among the wrongdoers.