Abdah bin Sulaiman al-Klabi عبدة بن سليمان الكلابي أبو محمد الكوفي · The Book on Blood Money

from his father, from his grandfather that the Messenger of Allah (ﷺ) said: "The Muslim is not killed for disbeliever." And with this chain, it has been narrated that the Prophet (ﷺ) said: "The blood-money paid for disbeliever is half of the blood-money paid for a believer."