Musannaf Ibn Abi Shaybah

Hazrat Sha'bi narrates that a man who had killed a woman was brought before Hazrat Ali (may Allah be pleased with him). Upon this, Hazrat Ali (may Allah be pleased with him) said to the guardians of the woman: If you wish, pay half the blood money to the family of the killer and then you may kill him.

Hazrat Auf narrates that Hasan Basri said: A man will not be killed in retribution for a woman unless the family of the killer pays half the blood money.

Hazrat Abdul Malik narrates that Hazrat Ata, regarding the man who killed a woman, stated as follows: If they kill him in retribution, then half the blood money should be paid, and if the woman's family wishes, they may accept the blood money.