He heard Al-'Irbad bin Sariyah say: "The Messenger of Allah (SAW) delivered a moving speech to us which made our eyes flow with tears and made our hearts melt. We said: 'O Messenger of Allah. This is a speech of farewell. What did you enjoin upon us?' He said: 'I am leaving you upon a (path of) brightness whose night is like its day. No one will deviate from it after I am gone but one who is doomed. Whoever among you lives will see great conflict. I urge you to adhere to what you know of my Sunnah and the path of the Rightly-Guided Caliphs, and cling stubbornly to it. And you must obey, even if (your leader is) an Abyssinian leader. For the true believer is like a camel with a ring in its nose; wherever it is driven, it complies."

“A Prophet will come accompanied by two men, and a Prophet will come accompanied by three, and (some will come) with more or less than that. It will be said to him: ‘Did you convey the message to your people?’ And he will say: ‘Yes.’ Then his people will be called and it will be said: ‘Did he convey the message to you?’ They will say: ‘No.’ Then it will be said: ‘Who will bear witness for you?’ He will say: ‘Muhammad and his nation.’ So the nation of Muhammad will be called and it will be said: ‘Did this man convey the message?’ They will say: ‘Yes.’ He will say: ‘How did you know that?’ They will say: ‘Our Prophet told us that the Messengers had conveyed the message, and we believed him.’ This is what Allah says: “Thus We have made you, a just (and the best) nation, that you be witnesses over mankind and the Messenger (Muhammad (saw)) be a witness over you.’” [2:143]

"Do not confuse us about our Prophet's Sunnah: The period that a slave-woman, whose master dies, and she has begotten a child from him must wait for, is four months and ten days." [Reported by Ahmad, Abu Dawud and Ibn Majah. al-Hakim graded it Sahih (authentic), but ad-Daraqutni considered it defective due to Inqita' (broken link)].

“I never saw the Messenger of Allah (saw) fasting the (first) ten days (of Dhul- Hijjah).”

It was narrated from ‘Aishah that the Prophet (saw) used to pray nine Rak’ah at night.