Urwa ibn al-Zubayr عروة بن الزبير · The Book on Blood Money

that the Prophet (ﷺ) said: "Indeed Allah has decreed Ihsan in everything. So when you kill, then do the killing well, and when you slaughter, then do the slaughtering well. Let one of you sharpen his blade, and let him comfort his animal (before slaughtering)."

that 'Umar would say: "The blood-money upon the tribe, and the wife does not inherit any of her husband's blood-money." Until Ad-Dahhak bin Sufyan Al-Kulabi informed him that the Messenger of Allah (ﷺ) wrote to me, that Ashaim Ad-Dibabi's wife inherited the blood-money of her husband.