قُلۡ فَأۡتُواْ بِكِتَٰبٖ مِّنۡ عِندِ ٱللَّهِ هُوَ أَهۡدَىٰ مِنۡهُمَآ أَتَّبِعۡهُ إِن كُنتُمۡ صَٰدِقِينَ ٤٩
Qul faʾtū bikitābim min ʿindillāhi huwa ahdā minhumā attabiʿhu in kuntum ṣādiqīn.
Say, "Then bring a scripture from Allāh which is more guiding than either of them that I may follow it, if you should be truthful."
Translation: Sahih International