It was narrated from Ibn 'Umar that: When the Messenger of Allah ( صلی اللہ علیہ وسلم ) started to pray, he raised his hands until they were in level with his shoulders, and when he said the takbir before bowing, and when he raised his head from bowing he raised (his hands) likewise, and said: "Sami Allahu liman hamidah Rabbana wa lakal-hamd (Allah hears the one who praises Him; Our Lord, and to You be praise)," and he did not do that when prostrating.

It was narrated that Abu Hurairah said: "When the Prophet ( صلی اللہ علیہ وسلم ) raised his head from bowing, he said: 'Allahumma Rabbana wa lakal-hamd (O Allah, our Lord and to You be the praise).'"

It was narrated from Anas that: The Prophet ( صلی اللہ علیہ وسلم ) fell from a horse onto his right side, and they entered upon him to visit him. The time for prayer came, and when he had finished praying he said: "The Imam is appointed to be followed, so when he bows, then bow, and when he stands up, then stand up, and when he says: 'Sami' Allahu liman hamidah (Allah hears the one who praises Him)' then say: 'Rabbana wa lakal-hamd (Our Lord, and to You be the praise).'"

It was narrated that Rifa'ah bin Rafi said: "We were praying behind the Messenger of Allah ( صلی اللہ علیہ وسلم ) one day and when he raised his head from bowing he said: 'Sami Allahu liman hamidah (Allah hears the one who praises Him).' A man behind him said: 'Rabbana wa lakal-hamd, hamdan kathiran tayyiban mubarakan fih. (O our Lord, and to You be praise, much blessed and pure praise.)' When the Messenger of Allah ( صلی اللہ علیہ وسلم ) had finished, he said: "Who is the one who spoke just now?" The man said: 'I did, O Messenger of Allah.' The Messenger of Allah ( صلی اللہ علیہ وسلم ) said: 'I saw thirty-some angels rushing to see which of them would write it down first.'"

It was narrated from Abu Hurairah that: The Messenger of Allah ( صلی اللہ علیہ وسلم ) said: "When the Imam says: 'Sami Allahu liman hamidah (Allah hears the one who praises Him),' then say: 'Rabbana wa lakal-hamd,' (Our Lord, and to You be the praise).' Whoever says that and it coincides with the angels saying it, his previous sins will be forgiven."

It was narrated from Hittan bin 'Abdullah that: He heard Abu Musa say: "The Prophet of Allah ( صلی اللہ علیہ وسلم ) addressed us and taught us our Sunnah and our prayer. He said: 'When you pray, make your rows straight and let one of you lead you in prayer. When the Imam says the takbir, then say the takbir. When he recites 'Not (the way) of those who earned Your anger, nor those who went astray' then say: "Amin" and Allah will answer you. When he says the takbir and bows, then say the takbir and bow. The Imam bows before you do and stands up before you do.' The Prophet of Allah ( صلی اللہ علیہ وسلم ) said: 'This makes up for that. And when he says: "'Sami Allahu liman hamidah (Allah hears the one who praises Him),' then say: "Allahumma Rabbana wa lakal-hamd (O Allah, our Lord, and to You be the praise), " Allah will hear you, for Allah has said on the lips of His Prophet ( صلی اللہ علیہ وسلم ): "Allah hears the one who praises Him." And when he (the Imam) says the takbir and prostrates, then say the takbir and prostrate. The Imam prostrates before you do and sits up before you do.' The Prophet of Allah ( صلی اللہ علیہ وسلم ) said: 'This makes up for that. And when he is sitting, let the first thing that any one of you says be: At-tahiyaatut-tayyibatus-salawatuLillah, salamun 'alayka ayyuhanabiyyu wa rahmatullahi wa barakatuhu, salamun 'alayna wa 'ala 'ibadillahis-salihin, ashhadu an la ilaha ill-Allah wa ashhadu anna Muhammadan 'abduhu wa rasuluh (All compliments, good words and prayers are due to Allah, peace be upon you O Prophet, and the mercy of Allah and His blessings. Peace be upon us and upon the righteous slaves of Allah. I bear witness that there is none worthy of worship except Allah and I bear witness that Muhammad is His slave and Messenger)- seven phrases which are the greeting of the prayer.'"

It was narrated from Al-Bara' bin 'Azib that: The bowing of the Messenger of Allah ( صلی اللہ علیہ وسلم ), and when he raised his head from bowing, and his prostration, and the time between the two prostration, were almost equal in length.

It was narrated from Ibn 'Abbas that: When the Prophet ( صلی اللہ علیہ وسلم ) said: "Sami Allahu liman hamidah (Allah hears the one who praises Him),' he said: "Allahumma Rabbana wa lakal-hamd, mil'as-samawati wa mil'al-ardi wa mil'ama shi'ta min shai'in ba'd (O Allah, our Lord, to You be the Praise, filling the heavens, filling the Earth, and filling whatever else You will.)"

It was narrated from Ibn 'Abbas that: When the Prophet ( صلی اللہ علیہ وسلم ) wanted to prostrate after bowing, he would say: "Allahumma, Rabbana wa lakal-hamd, mil'as-samawati wa mil'al-ardi wa mil'ama shi'ta min shai'in ba'd (O Allah, our Lord, to You be the Praise, filling the heavens, filling the Earth, and filling whatever else You will.)"

It was narrated from Abu Sa'eed that: The Messenger of Allah ( صلی اللہ علیہ وسلم ) used to say: "Sami Allahu liman hamidah, Rabbana wa lakal-hamd, mil'as-samawati wa mil'al-ardi wa mil'ama shi'ta min shai'in ba'd. Athlath-thana'i wal-majdi khairu ma qalal-'abdu wa kulluna laka 'abdun la mani'a lima a'taita wa la yanfa'u dhal-jaddi minkal-jadd (Allah hears the one who praises Him; Our Lord, to You be the Praise, filling the heavens, filling the Earth, and filling whatever else You will, Lord of Glory and Majesty, the truest thing a slave had said, and we are all slaves to You. None can withhold what You grant, nor can the possession of an owner benefit him before You.)"