It was narrated from 'Amr bin Shu'aib, from his grandfather, that :
the Messenger of Allah (ﷺ) ruled that the blood money for the people of the book is half of that of the blood money for the Muslims, and they are the Jews and Christians.
English reference: Vol. 3, Book 21, Hadith 2644
Arabic reference: Book 21, Hadith 2746