Volume 8, Book 74, Number 298:
Narrated Thumama:
Anas said, “Um Sulaim used to spread a leather sheet for the Prophet and he used to take a midday
nap on that leather sheet at her home.” Anas added, “When the Prophet had slept, she would take
some of his sweat and hair and collect it (the sweat) in a bottle and then mix it with Suk (a kind of
perfume) while he was still sleeping. “When the death of Anas bin Malik approached, he advised that
some of that Suk be mixed with his Hanut (perfume for embalming the dead body), and it was mixed
with his Hanut.