(Al-Qalam) 68 : 26
فَلَمَّا رَأَوْهَا قَالُوا إِنَّا لَضَالُّونَ
Thus when they saw it, they told, ‘indeed we are strayed’.
That means they realised the fact that all their plotting by forgetting Allah has become futile. See explanation 15: 56; and 23: 105-106.