Say, "With Allah is the far-reaching argument. If He had willed, He would have guided you all."
The Saheeh International Quran Translation
قُلْ فَلِلَّهِ ٱلْحُجَّةُ ٱلْبَٰلِغَةُ فَلَوْ شَآءَ لَهَدَىٰكُمْ أَجْمَعِينَSay, "With Allah is the far-reaching argument. If He had willed, He would have guided you all."