Surah Al-Ma'idah, ayah 31

فَبَعَثَ ٱللَّهُ غُرَابٗا يَبۡحَثُ فِي ٱلۡأَرۡضِ لِيُرِيَهُۥ كَيۡفَ يُوَٰرِي سَوۡءَةَ أَخِيهِۚ قَالَ يَٰوَيۡلَتَىٰٓ أَعَجَزۡتُ أَنۡ أَكُونَ مِثۡلَ هَٰذَا ٱلۡغُرَابِ فَأُوَٰرِيَ سَوۡءَةَ أَخِيۖ فَأَصۡبَحَ مِنَ ٱلنَّٰدِمِينَ ٣١

Faba'athallāhu ghurāban yabhathu fil-ardi liyuriyahū kayfa yuwārī saw'ata akhīhi qāla yāwaylatā a'ajaztu an akūna mithla hādhal-ghurābi fa uwāriya saw'ata akhī fa asbaha minan-nādimīn

Then Allāh sent a crow searching [i.e., scratching] in the ground to show him how to hide the disgrace²⁵⁷ 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.