Silsilat al-Ahadith al-Sahihah

Someone asked Sayyiduna Abbas (may Allah be pleased with him): Abu al-Abbas! Can a murderer repent? Sayyiduna Ibn Abbas (may Allah be pleased with them both) was astonished and asked: What are you saying? He repeated his question. Ibn Abbas again asked: What are you saying? This happened two or three times. Then Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: How can his repentance be accepted? I heard your Prophet (peace and blessings be upon him) say: "(On the Day of Resurrection) the murdered person will come, holding his head with one hand and grabbing the collar of the murderer with the other hand. Blood will be gushing from the veins of the murdered person. He will bring the murderer to the Throne and say to the Lord of the worlds: He killed me. Allah Almighty will say to the murderer: You are ruined, and then he will be sent to Hell."