(1) باب الْفِطْرَةِ
It was narrated that Abu Hurairah said:
"Five things are of the Fitrah: Clipping the nails, trimming the mustache, plucking the armpit hairs, shaving the pubes, and circumcision." (Sahih Mawquf) (RU)
Reference (RU): Sunan an-Nasa'i 5044 (RU)
In-book reference (RU): Book 48, Hadith 5 (RU)
English translation (RU): Vol. 6, Book 48, Hadith 5047 (RU)