Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) used to go to Umm Fulan (Umm Sulaym), and she would spread a leather bedding for him. The Prophet (peace be upon him) would take a nap on it (he would sleep and sweat would come from his blessed body), so she would collect his sweat and mix it with her perfume and use it. The Imam narrates in the same way from his teacher Muhammad bin Waleed. In it, it is mentioned that the Prophet (peace be upon him) used to go to Sayyidah Umm Sulaym (may Allah be pleased with her).