Volume 1, Book 12, Number 699:
Narrated Anas bin Malik Al-Ansari: Allah's Apostle rode a horse and fell down and the right side of his body was injured. On that day he prayed one of the prayers sitting and we also prayed behind him sitting. When the Prophet finished the prayer with Taslim, he said, "The Imam is to be followed and if he prays standing then pray standing, and bow when he bows, and raise your heads when he raises his head; prostrate when he prostrates; and if he says "Sami'a-l-lahu Liman hamida", you should say, "Rabbana wa-laka-l hamd.:
Volume 1, Book 12, Number 702:
Narrated Salim bin 'Abdullah:
My father said, "Allah's Apostle used to raise both his hands up to the level of his shoulders when opening the prayer; and on saying the Takbir for bowing. And on raising his head from bowing he used to do the same and then say "Sami a-l-lahu Liman hamida, Rabbana walaka-l-hamd." And he did not do that (i.e. raising his hands) in prostrations.
Volume 1, Book 12, Number 708:
Narrated Abu Huraira:
Allah's Apostle said, "You see me facing the Qibla; but, by Allah, nothing is hidden from me regarding your bowing and submissiveness and I see you from behind my back."
Volume 1, Book 12, Number 710:
Narrated Anas bin Malik:
The Prophet, Abu Bakr and 'Umar used to start the prayer with "Al-hamdu lil-lahi Rabbil-'ala-min (All praises are for Allah the Lord of the Worlds)."