6:149
قُلْفَلِلَّهِٱلْحُجَّةُٱلْبَٰلِغَةُ ۖفَلَوْشَآءَلَهَدَىٰكُمْأَجْمَعِينَ١٤٩
qul falillahi l-ḥujatu l-bālighatu falaw shāa lahadākum ajmaʿīna
Say, "With Allāh is the far-reaching [i.e., conclusive] argument. If He had willed, He would have guided you all."(149)