Aamir says that once Abu Saeed Khudri (may Allah be pleased with him) and Marwan were sitting when a funeral procession passed by. Abu Saeed (may Allah be pleased with him) stood up, but Marwan said, "Sit down." Abu Saeed Khudri (may Allah be pleased with him) said, "A funeral procession passed in front of the Prophet (peace and blessings be upon him), and he stood up." Upon this, Marwan also had to stand up.