فَأْتُوا۟ بِكِتَٰبِكُمْ إِن كُنتُمْ صَٰدِقِينَ
Then bring your writing, if you are truthful.
Roots in this verse: ا ت ي (Aty), ك ت ب (ktb), ك و ن (kwn), ص د ق (Sdq)