'Aishah reported that the Messenger of Allah would run his fingers through his beard. (Related by Ibn Majah and at-Tirmidhi, who classified it as sahih . )
Anas said that when the Messenger of Allah performed ablution, he would take a handful of water and put it under his jaws and pass it through his beard. He said, "This is what my Lord, Allah, ordered me to do." (Related by Abu Dawud, al-Baihaqi and al-Hakim.)
Ibn 'Abbas said that when the Messenger of Allah performed ablution, he would run his fingers through his fingers and toes. (Related by "the five," except Ahmad.) It is also related that it is preferable to remove jewelry, for example, rings, bracelets, and so on, while performing ablution. Even though these reports are not accepted as fully authentic, one must follow them, for they fall under the general category of completing and perfecting the ablution.
This is a sunnah that the Prophet, upon whom be peace, almost always followed. If he acted otherwise, it was just to show that the other acts are permissible. 'Amr ibn Shu'aib related on the authority of his father from his grandfather who said: "A bedouin came to the Messenger of Allah, upon whom be peace, and asked him about the ablution. He showed him how to wash each part three times and said, 'This is the ablution. Whoever does more than that has done wrong, transgressed and committed evil." (Related by Ahmad, an-Nasa'i and Ibn Majah.) 'Uthman also reported that the Messenger of Allah would repeat each washing three times. (Related by Ahmad, Muslim and at-Tirmidhi.) It is also proven that he performed each washing only once or twice. According to most of the reports, he wiped his head only once.
Said 'Aishah, "The Messenger of Allah loved to begin with his right side while putting on his shoes, straightening his hair and cleaning (or purifying) himself." (Related by al-Bukhari and Musilm.) Abu Hurairah reported that the Prophet said, "When you clothe or wash yourself, begin with your right side." (Related by Ahmad, Abu Dawud, at-Tirmidhi, and an-Nasa'i.)