Al Qasas, 49 Ayah
28:49
قُلۡ فَأۡتُواْ بِكِتَٰبٖ مِّنۡ عِندِ ٱللَّهِ هُوَ أَهۡدَىٰ مِنۡهُمَآ أَتَّبِعۡهُ إِن كُنتُمۡ صَٰدِقِينَ ٤٩
Qul Fa'tū Bikitābin Min `Indi Al-Lahi Huwa 'Ahdá Minhumā 'Attabi`hu 'In Kuntum Şādiqīna
Say, "Then bring a scripture from Allah which is more guiding than either of them that I may follow it, if you should be truthful."