Al-Ma'idah 31

فَبَعَثَ ٱللَّهُ غُرَابًا يَبْحَثُ فِى ٱلْأَرْضِ لِيُرِيَهُۥ كَيْفَ يُوَٰرِى سَوْءَةَ أَخِيهِ ۚ قَالَ يَـٰوَيْلَتَىٰٓ أَعَجَزْتُ أَنْ أَكُونَ مِثْلَ هَـٰذَا ٱلْغُرَابِ فَأُوَٰرِىَ سَوْءَةَ أَخِى ۖ فَأَصْبَحَ مِنَ ٱلنَّـٰدِمِينَ

fabaʿatha l-lahu ghurāban yabḥathu fī l-arḍi liyuriyahu kayfa yuwārī sawata akhīhi qāla yāwaylatā aʿajaztu an akūna mith'la hādhā l-ghurābi fa-uwāriya sawata akhī fa-aṣbaḥa mina l-nādimīna

Then Allāh sent a crow searching [i.e., scratching] in the ground to show him how to hide the disgrace 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.