that the Messenger of Allah (ﷺ) said: "A man has more right to his seat. If he leaves for some need of his, then he returns, then he has more right to his seat."
that a man sat in the middle of a circle so Hudhaifah said: "Cursed upon the tongue of Muhammad - or - Cursed, by Allah upon the tongue of Muhammad (ﷺ), is he who sits in the middle of a the circle."
"There was no person more beloved to them than the Messenger of Allah (ﷺ)." [He said:] "And they would not stand when they saw him because they knew that he disliked that."
that Mu'awiyah came out and 'Abdullah bin Az-Zubair and Ibn Safwan stood for him when they saw him, so he said: "Sit, I heard the Messenger of Allah (ﷺ) saying: 'Whoever wishes that he be received by men standing then, let him take his seat in the Fire.'"
that the Messenger of Allah (ﷺ) said: "Five are from the Fitrah: Cutting the pubic hair, circumcision, paring the mustache, plucking the under arm hair and trimming the fingernails."
that the Prophet (ﷺ) said: "Ten are from the Fitrah: Paring the mustache, leaving the beard to grow, Siwak, cleaning the nose with water, paring the fingernails, washing the knuckles, plucking the underarm hair, shaving the pubic hairs, and Intiqas with water."
from the Prophet (ﷺ), that he (ﷺ) fixed the time as every forty nights for them to trimming the fingernails, taking from the mustache, and shaving the pubic hairs.
"[The Messenger of Allah (ﷺ)] fixed the time for us paring the mustache, trimming the fingernails, shaving the pubic hairs and plucking the underarm hairs - that we not leave it for more than forty days."