ibn Abbas · The Book on Blood Money

from his father, from his grandfather that the Prophet (ﷺ) said: "Whoever kills deliberately, he is handed over to the guardians of the one killed. If they wish to, they have him killed, and if they wish to, they take the blood-money. That is thirty Hiqqah, thirty Jadha'ahs and forty pregnant camels. Whatever (amount more) they require from him, than that is for them (if they choose)." THat is because of the severity of blood-money.

from his father, from his grandfather that the Prophet (ﷺ) said: "Regarding the Mawadih; five, five."

"I said to 'Ali: O Commander of the Believers! Do you have anything written that is not in Allah's Book?' He said: 'By the One Who splits the seed and creates the soul, I have not learned from it except what understanding of the Qur'an Allah gives to a man, and what is in this sheet of paper.' I said: 'What is in the paper?' He said: 'It is the 'Aql, the (ransom for) release of captives, and the judgement…

from his father, from his grandfather, that the Prophet (ﷺ) imprisoned a man for an accusation, then he let him go.