It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him and his family) used to visit the house of Sayyida Umm Sulaym (may Allah be pleased with her) and would sleep on her bed, and sometimes it would happen that Sayyida Umm Sulaym (may Allah be pleased with her) was not present at home. When she would come, she would find the Prophet (peace and blessings be upon him and his family) sleeping. When the Noble Prophet (peace and blessings be upon him and his family) slept, so much sweat would come from him that it would begin to flow. She would collect his sweat with cotton and squeeze it into a bottle, and then she would mix it with her musk.