Sayyiduna Wa'il bin Hujr (may Allah be pleased with him) said: I was present with the Prophet (peace and blessings of Allah be upon him) when a murderer, tied with a strap, was brought to him. The Messenger of Allah (peace and blessings of Allah be upon him) said to the heir of the slain: "Will you pardon this murderer?" He replied: No. The Prophet (peace and blessings of Allah be upon him) said: "Then will you accept blood money?" He replied: No. The Prophet (peace and blessings of Allah be upon him) said: "Then will you kill him?" He said: Yes, I will kill him. The Messenger of Allah (peace and blessings of Allah be upon him) said: "If you pardon this murderer, he will bear your and your slain (brother's) sin." Wa'il said: So that companion let the murderer go, and I was watching as the murderer was pulling his strap and leaving; he pardoned the murderer.