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.
Translation: Saheeh International (English)
1 Referring to the dead body, evidence of his shameful deed.
Allah sent a crow to dig the earth in front of him to bury another dead crow and teach him how to cover his brother’s body. He then became regretful. Regret is the end result of those who commit sins.