Musannaf Ibn Abi Shaybah 29918 — A man who kills deliberately

Ibn Jurayj says: I asked Ata: "A man deliberately killed someone and then fled, and he could not be seized until he died, leaving behind wealth." He said: "The blood money of the slain man is due from his wealth." It was said to him: "The killer was imprisoned until he died." He said: "They have indeed killed him! They imprisoned him until he died in prison."