Qais bin Abad says that I asked Sayyiduna Ali (may Allah be pleased with him) during a journey, "Tell me, did the Prophet (peace and blessings be upon him) advise you regarding this journey, or is it based on your own opinion?" Sayyiduna Ali (may Allah be pleased with him) asked, "What is your purpose in asking this question?" I replied, "Only for the sake of religion." He said, "The Prophet (peace and blessings be upon him) did not advise me regarding this; it is merely an opinion."