فَوَقَعَ الْحَقُّ وَبَطَلَ مَا كَانُواْ يَعْمَلُونَ
[7:118]
So the truth was established, and what they did became null.
Thus truth was confirmed, and all that they did was made of no effect.
Thus was the Truth vindicated and that which they were doing was made vain.