قُلْ فَأْتُوا۟ بِكِتَـٰبٍ مِّنْ عِندِ ٱللَّهِ هُوَ أَهْدَىٰ مِنْهُمَآ أَتَّبِعْهُ إِن كُنتُمْ صَـٰدِقِينَ
Qul faatoo bi Kitaabim min 'indil laahi huwa ahdaa minhu maaa attabi'hu in kuntum saadiqeen
Say, "Then bring a scripture from God that gives better guidance than these two, and I will follow it — if you are truthful."