It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) used to visit Sayyidah Umm Haram bint Milhan (may Allah be pleased with her), who was married to Sayyiduna Ubadah bin Samit (may Allah be pleased with him), and she would feed him food. Once, she fed him food and began to remove lice from his head, and the Prophet (peace and blessings of Allah be upon him) fell asleep. Then he woke up, and he was smiling.