Surah Al-An'am (6:23)
ثُمَّ لَمْ تَكُن فِتْنَتُهُمْ إِلَّآ أَن قَالُوا۟ وَٱللَّهِ رَبِّنَا مَا كُنَّا مُشْرِكِينَ
Then their test-result was nothing but that they said, “By Allah, our Lord, we were not ones who joined (others with Him).”
Roots in this verse: ك و ن (kwn), ف ت ن (ftn), ق و ل (qwl), ا ل ه (Alh), ر ب ب (rbb), ش ر ك ($rk)