Humayd (may Allah have mercy on him) narrates that when Anas bin Malik (may Allah be pleased with him) died, musk was applied to him as perfume, and some of the sweat of the Messenger of Allah (peace and blessings be upon him) was mixed in it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6709