Hazrat Iyad narrates from Sayyiduna Abu Sa'id (may Allah be pleased with him) that Marwan was delivering a sermon when Sayyiduna Abu Sa'id (may Allah be pleased with him) started performing prayer. So the guards came to make him sit down, but Sayyiduna Abu Sa'id (may Allah be pleased with him) refused to sit until he had completed the prayer. Then when he finished the prayer, we came to him and said, "May Allah forgive you, these people only wanted to trouble you." He replied, "I will never, ever leave these two rak'ahs while I have heard their command from the Messenger of Allah (peace and blessings be upon him)."