سورة Al-Qasas 28:49

قُلْ فَأْتُوا۟ بِكِتَـٰبٍۢ مِّنْ عِندِ ٱللَّهِ هُوَ أَهْدَىٰ مِنْهُمَآ أَتَّبِعْهُ إِن كُنتُمْ صَـٰدِقِينَ ٤٩

Say, ˹O Prophet,˺ “Bring then a scripture from Allah which is a better guide than these two so I may follow it, if your claim is true.”