Maulana Wahiduddin Khan I Principles of Life
Adam, the first man, had two sons, one of whom killed the other in anger while quarrelling. This was the first incident of the killing of a man in the human existence and the murderer had no idea of what should be done with the dead body of his brother.
Then God sent a raven, which scratched the earth, so that He might show him how to hide the corpse of his brother. ‘Alas!’ he cried, ‘Am I not able even to be like this raven, so that I may hide the corpse of my brother?’ And he repented. (The Quran, 5:31).