The Book of Adornment
كتاب الزينة من السنن
Chapter 1: The Fitrah
The Messenger of Allah [SAW] said: "Ten things are part of the Fitrah: Trimming the mustache, trimming the nails, washing the joints, letting the beard grow, using the Siwak, rinsing the nose, plucking the armpit hairs, shaving the pubes, and washing with water (after relieving oneself)." Mus'ab bin Shaibah said: "I have forgotten the tenth, unless it was rinsing the mouth."
"I heard Talq mentioning ten things that have to do with the Fitrah: Using the Siwak, trimming the mustache, clipping the nails, washing the joints, shaving the pubes, rinsing the nose, and I am not sure about rinsing the mouth."
"Ten things are from the Sunnah: Using the Siwak, trimming the mustache, rinsing the mouth, rinsing the nose, letting the beard grow, trimming the nails, plucking the armpit hairs, circumcision, shaving the pubes and washing one's backside."
"The Messenger of Allah [SAW] said: 'Five things are of the Fitrah: Circumcision, shaving the pubes, plucking the armpit hair, clipping the nails and trimming the mustache.'"
"Five things are of the Fitrah: Clipping the nails, trimming the mustache, plucking the armpit hairs, shaving the pubes, and circumcision." (Sahih Mawquf)
Chapter 2: Trimming the Mustache
That the Messenger of Allah [SAW] said: "Trim the mustache and let the beard grow."
"The Messenger of Allah [SAW] said: 'Let the beard grow and trim the mustache.'"
"I heard the Messenger of Allah [SAW] say: 'Whoever does not take from his mustache, he is not one of us.'"
Chapter 3: Concession for Shaving the Head
The Prophet [SAW] saw a boy, part of whose head had been shaven and part had been left. He forbade that and said: "Shave all of it, or leave all of it."
Chapter 4: Prohibition of a Woman Shaving her Head
"The Messenger of Allah [SAW] forbade women to shave their heads."
Chapter 5: Prohibition of Al-Qaza' (Shaving Part of the Head and Leaving Part)
The Prophet [SAW] said: "Allah, the Mighty and Sublime, has forbidden me from Al-Qaza' (to shave part of the head and leave part)."
"The Messenger of Allah [SAW] forbade Al-Qaza' (to shave part of the head and leave part)."
Chapter 6: Cutting the (Hair)
"I came to the Prophet [SAW] and I had hair. He said: 'This is bad,' and I thought he meant me, so I cut my hair then I came to him. He said to me: 'I didn't mean you, but this is better.'"
"The hair of the Prophet [SAW] was wavy, neither curly nor straight, and (hung down) between his ears and his shoulders."
"I met a man who accompanied the Prophet [SAW] as Abu Hurairah accompanied him for four years, who said: 'The Messenger of Allah [SAW] forbade us from combing our hair everyday.'"
Chapter 7: Combing the Hair Every Other Day
"The Messenger of Allah [SAW] forbade combing one's hair, except every other day."
The Prophet [SAW] forbade coming one's hair except every other day.
"Combing one's hair (should be done) every other day."
"One of the Companions of the Prophet [SAW] was a governor in Egypt, and one of his companions came to him and found him with unkempt, wild hair. He said: 'How come I see you with wild hair when you are a governor?' He said: 'The Prophet of Allah [SAW] forbade us from Al-Irfah,' and we said: 'What is Al-Irfah?' He said: 'To comb your hair every day.'"