Alqama bin Qays علقمة بن قيس بن عبد الله · The Book on Salat (Prayer)

"Allah's Messenger would talk during the night with Abu Bakr about matters concerning the Muslims while I was with them."

the Prophet said: "Let those among you with understanding and reason be close to me, then those after them, then those after them. And do not separate or dissention will occur among your hearts, and beware of the commotion of the markets."

"Allah's Messenger would say the Takbir for every lowering and raising, standing and sitting, and (so did) Abu Bakr and Umar."

Abdullah bin Mas'ud said: "Shall I not demonstrate the Salat of Allah's Messenger to you?" Then he offered Salat and he did not raise his hands except while saying the first Takbir."

The Hadith of Ibn Buhainah is a Hasan Hadith, and this is acted upon according to some of the people of knowledge. It is the opinion of Ash-Shafi'i, he held the view that all prostrations for As-Sahw were to be performed before the Salam, saying: "This one abrogates the other Ahadith" and he mentioned that the last action of the Prophet (ﷺ) was according to this. Ahmad and Ishaq said: "When a man stands up after two Rak'ah, then he…

"The Prophet (S) prayed five (Rakah) for Zuhr, so it was said to him: 'Has the prayer been added to, or have you merely forgotten?' So he (S) performed two prostrations after he had said the Salam."