: "Trim the mustaches and let the beards grow." "The tooth-stick purifies the mouth and pleases the Lord." When the Prophet (may Allah's peace and blessings be upon him) got up at night, he would cleanse his mouth with Siwak (tooth-stick). I came to the Prophet (may Allah's peace and blessings be upon him) while he was cleansing his mouth with a ripe tooth-stick. The edge of the tooth-stick was on his tongue and he was making a sound like: “ugh, ugh” as if he was heaving, and the tooth-stick was in his mouth : : Ten practices are part of the Fitrah: Trimming the mustache, letting the beard grow, using the tooth-stick, rinsing the nose, trimming the nails, washing the finger joints, plucking the armpit hair, shaving the pubic hair, and washing the private parts with water A time limit was set for us regarding trimming the mustache, clipping the nails, plucking the armpit hair, and shaving the pubic hair—that we should not leave them for more than forty nights. I have told you repeatedly to use the tooth-stick