Sayyidah Umm Atiyyah (may Allah be pleased with her) said: When Sayyidah Zaynab (may Allah be pleased with her), the daughter of the Messenger of Allah (peace and blessings be upon him), passed away, he (peace and blessings be upon him) said: "Wash her three times, five times, or more than that if you see fit, and wash her with water and lote-tree leaves, and add some camphor in the last washing. Then, when you have finished, inform me." When we finished, we informed him (peace and blessings be upon him), and he (peace and blessings be upon him) gave us his waist-wrapper and said: "Wrap her in this." Umm Atiyyah (may Allah be pleased with her) said: We divided her hair into three braids and let them fall behind her. She said: The haqw is a small waist-wrapper.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21549