(34) باب غَسْلِ الْمَيِّتِ أَكْثَرَ مِنْ سَبْعَةٍ
Something similar was narrated from Umm 'Atiyyah except, that he (the narrator) said:
"Three times or five, or seven, or more than that, if you think that (is necessary)."
Reference: Sunan an-Nasa'i 1888
In-book reference: Book 21, Hadith 71
English translation: Vol. 3, Book 21, Hadith 1889