فَبَعَثَ اللّٰهُ غُرَابًا يَّبْحَثُ فِى الْاَرْضِ لِيُرِيَهٗ كَيْفَ يُوَارِيْ سَوْءَةَ اَخِيْهِ ۗ قَالَ يٰوَيْلَتٰٓى اَعَجَزْتُ اَنْ اَكُوْنَ مِثْلَ هٰذَا الْغُرَابِ فَاُوَارِيَ سَوْءَةَ اَخِيْۚ فَاَصْبَحَ مِنَ النّٰدِمِيْنَ ۛ ( المائدة: ٣١ )
Faba'asal laahu ghuraabai yabhasu fil ardi liyuriyahoo kaifa yuwaaree sawata akheeh; qaala yaa wailataaa a'ajaztu an akoona misla haazal ghuraabi fa uwaariya saw ata akhee fa asbaha minan naadimeen (al-Māʾidah 5:31)
Then Allah 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. (Al-Ma'idah  : 31)
1 Mufti Taqi Usmani
Then, Allah sent a crow that scratched the earth to show him how he should conceal the corpse of his brother. He said, “Alas! Was I not even able to be like this crow so that I could conceal the corpse of my brother? So, he stood regretful.