Muhammad bin Sirin, may Allah have mercy on him, says that once a funeral passed by in front of Sayyiduna Imam Hasan, may Allah be pleased with him, and Sayyiduna Ibn Abbas, may Allah be pleased with them both. Sayyiduna Hasan, may Allah be pleased with him, stood up and Sayyiduna Ibn Abbas, may Allah be pleased with them both, remained seated. Sayyiduna Imam Hasan, may Allah be pleased with him, said: Do you not know that a funeral passed by the Prophet, peace and blessings be upon him, and he stood up? He said: Of course, but later the Prophet, peace and blessings be upon him, began to remain seated.