It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them) that the Messenger of Allah (peace and blessings be upon him) passed by two graves and said: "They are being punished in their graves, and not for a major sin. One of them used to go about spreading slander, and the other did not protect himself from urine splashes." The narrator said: Then the Prophet (peace and blessings be upon him) took a fresh twig, split it, and placed a piece at the head of each grave, then said: "Perhaps their punishment will be lightened as long as these twigs do not dry."