An-Nazi'aat - 79:12

قَالُوا تِلْكَ إِذًا كَرَّةٌ خَاسِرَةٌ
[79:12]
They said: That then would be a return occasioning loss.
They say: "It would, in that case, be a return with loss!"
They say: Then that would be a vain proceeding.