«فَلَوْ شَاءَ لَهَدَاكُمْ أَجْمَعِينَ» (al-Anʿām 6:149)
Had God willed, He would have guided all of you.
The object of “shāʾa” (willed) is not separately expressed. The conditional result, “He would have guided you all,” indicates that the willing concerns their guidance, not an unspecified act of willing.
The apodosis supplies the necessary verbal cue. Omission avoids an explicit repetition of what the rest of the conditional sentence already makes clear.