Ibn Majah

´It was narrated from 'Ammar bin Yasir that:` The Messenger of Allah said: "Part of the Fitrah is rinsing out the mouth, rinsing out the nostrils, using the tooth stick, trimming the mustache, clipping the nails, plucking the armpit hairs, shaving the pubic hairs, washing the joints, washing the private parts and circumcision.'" (Da'if) Another chain with similar wording.

Narrated Ammar bin Yasir: The Messenger of Allah ﷺ said: The rinsing of mouth and snuffing up water in the nose are acts that bear the characteristics of fitrah (nature). He then narrated a similar tradition (as reported by Aishah), but he did not mention the words "letting the beard grow". He added the words "circumcision" and "sprinkling water on the private part of the body". He did not mention the words "cleansing oneself after easing". Abu Dawud said: A similar tradition has been reported on the authority of Ibn Abbas. He mentioned only five sunnahs all relating to the head, one of them being parting of the hair; it did not include wearing the beard. Abu Dawud said: The tradition as reported by Hammad has also been transmitted by Talq bin Habib, Mujahid, and Bakr bin Abd Allaah bin al-Muzani as their own statement ( not as a tradition from the Prophet, ﷺ ). They did not mention the words "letting the beard grow". The version transmitted by Muhammad bin Abd Allaah bin Abi Maryam, Abu Salamah, and Abu Hurairah from the Prophet ﷺ mentions the words "letting the beard grow". A similar tradition has been reported by Ibrahim al-Nakha'i. He mentioned the words "wearing the beard and circumcision. "