Al-Qasas · Ayah 49
قُلْ فَأْتُوا۟ بِكِتَٰبٍ مِّنْ عِندِ ٱللَّهِ هُوَ أَهْدَىٰ مِنْهُمَآ أَتَّبِعْهُ إِن كُنتُمْ صَٰدِقِينَ
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."
Quran 28:49 (Al-Qasas) · Saheeh International, Noor International Center (QuranEnc v1.1.2)