It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:
"If a person's relative is killed, he has the choice of two things: He may either have the killer killed, or he may demand the blood money." (ES)
English reference (ES): Vol. 3, Book 21, Hadith 2624 (ES)
Arabic reference (ES): Book 21, Hadith 2725 (ES)