ibn Mas'ud · The Book on Salat (Prayer)

"The idolaters kept Allah's Messenger distracted from four prayers on the Day of Al-Khandaq (the battle of the Trench) until as much as Allah willed of the night had passed. So he ordered Bilal to call the Adhan, then he called the Iqamah to Zuhr, then he called the Iqamah to pray Asr, then he called the Iqamah to pray Maghrib, then he called the Iqamah to pray Isha."

Allah's Messenger said: "Salatul-Wusta is the Asr prayer."

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."

the Prophet said: "When one of you bows then says while he is bowing: (Subhana Rabbiyal Azim) 'Glorious is my Lord the Magnificent' three times, then he has completed his bowing. And that is the least of it. And when he prostrates and says while prostrating: (Subhana Rabbiyal A'la) 'Glorious is my Lord the Most High' three times, then he has completed his prostrations, and that is the least of it.'"

"Allah's Messenger taught us, that when we sit for every two Rak'ah we should say: (At-Tahyyatulillah, was-salawatu wattayybaat. As-salamu alaika ayyuhannabiyyu wa rahmatullahi wa barakatuhu, as-salamu alaina wa ala ibadillahis-salihin. Ashhadu an la ilaha illallah wa ashadu anna Muhammadan abduhu wa Rasuluh.) 'All greetings, prayers, and pure words are Allah. Peace be upon you O Prophet, and Allah's mercy and His blessings. Peace be upon us and all of the righteous worshippers of Allah. I testify that nne has the…

"It is from the Sunnah to say the Tashahhud quietly"

"When Allah's Messenger sat for the first two Rak'ah it was as if he was on hot stones." Shu'bah (one of the narrators) said: "Then Sa'd's lips moved (saying) something. So I said: 'Until he stood?' He said: 'Until he stood.'"

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."

The Prophet (S) said: "May Allah have mercy upon a man who prays four before Al-Asr."