On the authority of Ibn ‘Umar that the Messenger of God said: “It's of the natural instinct: to shave the pubic hair, trim the nails, and trim the moustache.” On the authority of Abu Hurairah, the Prophet said: “Five things are part of the natural instinct: circumcision, shaving pubic hair, clipping the nails, plucking the armpits, and trimming the moustache.”