Five are the acts quite akin to the Fitra, or five are the acts of Fitra: circumcision, shaving the pubes, cutting the nails, plucking the hair under the armpits and clipping the moustache.
Sahih Muslim Book 2, Hadith 64
← Previous Hadith " Verily in the creation of the heavens and the earth and the alternation of night and day." up to the (words)" save us from the torment of Hell." He then returned to his house, used the tooth-stick, performed the ablution, and then got up and offered the prayer. He than lay down on the bed. and again got up and went out and looked towards the sky and recited this verse (mentioned above), then returned, used the tooth-stick, performed ablution and again offered the prayer.

Sahih Muslim Book 2, Hadith 63 Next Hadith → Five are the acts of fitra: circumcision, removing the pubes, clipping the moustache, cutting the nails, plucking the hair under the armpits.

Sahih Muslim Book 2, Hadith 65