Sayings like this are quite common:
Narrated Abu Said Al-Khudri:
The Prophet said, "Ghusl (taking a bath) on Friday is compulsory for every Muslim reaching the age of puberty."
Times change and standards change. Up until the late 18th century, Christians thought that Islamic bathing was a degenerate practice - a sign that they liked being naked and getting into water. Good moral people only used to bathe once a year!
Thx!