قُلْفَأْتُوْابِكِتٰبٍمِّنْعِنْدِاللّٰهِهُوَاَهْدٰىمِنْهُمَآاَتَّبِعْهُاِنْكُنْتُمْصٰدِقِيْنَ٤٩
qul fa'tuu bikitaabin min 'indi allaahi huwa ahdaa minhumaa attabi'hu in kuntum shaadiqiina
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." [49]
— Sahih International