Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Asma bint Umais. She says that the Messenger of Allah, peace and blessings be upon him, asked me, "With what do you take a laxative?" I replied, "With shubrum." The Prophet, peace and blessings be upon him, said, "That is a hot, strong purgative." Then I took a laxative with senna, so the Prophet, peace and blessings be upon him, said, "If there were anything that could cure death, it would be senna," or he said, "Senna is a cure even from death."