Regret

Then Allāh sent a crow searching [i.e., scratching] in the ground to show him how to hide the disgrace¹ of his brother. He said, "O woe to me! Have I failed to be like this crow and hide the disgrace [i.e., body] of my brother?" And he became of the regretful.

So you see those in whose hearts is disease [i.e., hypocrisy] hastening into [association with] them, saying, "We are afraid a misfortune may strike us." But perhaps Allāh will bring conquest or a decision from Him, and they will become, over what they have been concealing within themselves, regretful.

Indeed, those who disbelieve spend their wealth to avert [people] from the way of Allāh. So they will spend it; then it will be for them a [source of] regret; then they will be overcome. And those who have disbelieved - unto Hell they will be gathered.

And if each soul that wronged had everything on earth, it would offer it in ransom. And they will confide regret when they see the punishment; and they will be judged in justice, and they will not be wronged.

[Allāh] said, "After a little, they will surely become regretful."

But they hamstrung her and so became regretful.

Those who were oppressed will say to those who were arrogant, "Rather, [it was your] conspiracy of night and day when you were ordering us to disbelieve in Allāh and attribute to Him equals." But they will [all] confide regret when they see the punishment; and We will put shackles on the necks of those who disbelieved. Will they be recompensed except for what they used to do?

O you who have believed, if there comes to you a disobedient one with information, investigate, lest you harm a people out of ignorance and become, over what you have done, regretful.