Hazrat Malik bin Anas (may Allah be pleased with him) narrates that Hazrat Hani bin Hizam said: A man found another man with his wife and killed him. This matter was written to Hazrat Umar, so Hazrat Umar wrote two letters regarding this: one public letter that the man should be killed, and one secret letter that blood money should be taken from him.

29720 - Yahya ibn Adam added from Malik ibn Anas from Hani’ ibn (Haram) (1) that a man found a man with his wife and killed her, so it was written about this to Umar, and Umar wrote two letters about it: a letter in public that he is to be killed, and a letter in secret that the blood money is to be taken (2).