Sayyidah Umm Atiyyah (may Allah be pleased with her) said: When the daughter of the Messenger of Allah (peace and blessings be upon him) died, he (peace and blessings be upon him) said to us: "Wash her an odd number of times, three or five, and in the last washing put camphor, or some camphor; then when you have finished washing her, inform me." So we informed him (peace and blessings be upon him), and he (peace and blessings be upon him) threw his waist-wrapper to us and said: "Wrap it around her body (beneath the shroud)."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21628