(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)." (ID)
Reference (ID): Sunan an-Nasa'i 1888 (ID)
In-book reference (ID): Book 21, Hadith 71 (ID)
English translation (ID): Vol. 3, Book 21, Hadith 1889 (ID)