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