قُلۡ فَلِلَّهِ ٱلۡحُجَّةُ ٱلۡبَٰلِغَةُۖ فَلَوۡ شَآءَ لَهَدَىٰكُمۡ أَجۡمَعِينَ ١٤٩
Qul falillāhil-hujjatul-bālighatu falaw shā'a lahadākum ajma'īn
Say, "With Allāh is the far-reaching [i.e., conclusive] argument. If He had willed, He would have guided you all."