Allah's Messenger (SAW) looked at us and said, "When one of you is (sitting) in prayer, he should say, 'All services reported by words, by prayers (acts of worship), and all good things are due to Allah, peace be upon you, O Prophet, and Allah's mercy and blessings, peace be upon us and upon Allah's upright slaves. I testify that nothing deserves to be worshipped except Allah and I testify that Muhammad is His slave and Messenger.' Then he may choose any supplication which pleases him most and recite it." [Agreed upon, and this wording is from al-Bukhari].

Tamim ibn Hadhlam said, "I will mention the first to be greeted as 'Amir' in Kufa. Al-Mughira ibn Shu'ba left by the Bab ar-Rahba and a man of Kinda came up to him. They claim that it was Abu Qurra al-Kindi. He greeted him and said, 'Peace be upon you, O Amir, and the mercy of Allah.' He disliked it. So the man said, 'Peace be upon you, O Amir, and the mercy of Allah. Peace be upon you. Am I one of you or not?'" Sammak ibn Salama ad-Dabi said, "After that it became an established practice."

“The Messenger of Allah (saw) used to teach us the Tashah-hud as he used to teach us a Surah from the Qur’an: ‘Bismillahi wa Billahi; at-tahiyyatu lillahi was-salawatu wat-tayyibatu lillahi; as-salamu ‘alayka ayyuhan- Nabiyyu wa rahmatullahi wa barakatuhu; as-salamu ‘alayna wa ‘ala ‘ibadillahis-salihin. Ashhadu an la ilaha illallah wa ashhadu anna Muhammadan ‘abduhu wa rasuluhu. As’alu Allahal-jannah, wa a’udhu billahi minannar (In the name of Allah and by the grace of Allah. All compliments are due to Allah and all prayers and good words 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 none has the right to be worshipped but Allah and I bear witness that Muhammad is His slave and Messenger. I ask Allah for Paradise and I seek refuge with Allah from the Fire).’”

Ibn Mas'ud said, " They were doing the prayer with the Prophet, may Allah bless him and grant him peace, and someone said, 'Peace be upon Allah.' When the Prophet, may Allah bless him and grant him peace, finished the prayer, he said, 'Who said "Peace be upon Allah"? Allah is Peace. Rather say, "Greetings belong to Allah and good words and prayers. Peace be upon you, O Prophet and the mercy of Allah and His blessings. Peace be upon us and upon all the right-acting slaves of Allah. I testify that there is no god but Allah and I testify that Muhammad is His slave and Messenger."'"

"The Messenger of Allah taught us the Tashah-hud for Salat and the Tashah-hud for Al-Hajjah." He said: "The Tashah-hud for Salat is: (At-Tahiyyatulilah, was-walawtu wat-tayyibatu. As-Salamu alaika ayyuhan-Nabiyyu wa rahmatullilahi wa barakatuhu, As-Salamu alina wa ala ibadillahis-salihin. Ashahadu an la ilaha illallah, wa ashhadu anna Muhammadan abduha wa Raduluh.) 'All greetings, prayers, and pure words are for 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 none has the right to be worshiped but Allah. and I testify that Muhammad is His slave and His Messenger."And the Tashah-hud for Al-Hajjah is: 'Indeed all praise is due to Allah, we seek His aid, and we seek His forgiveness, and we seek refuge with Allah from the evils of our souls and the mischief of our deeds. (Innal-Hamdlillahi nasta'inuhu, wa nastaghfirhu, wa na'udhu billahi min sharuri anfusina, wa sayy'ita a'malina, man yahdihi, sala mudilla lahu, wa manyudlil, fala Hadiya lahu, wa ashadu an la ilaha illallah wa ashadu anna Muhammadan abduhu wa Rasuluh) 'Whoever He guides - meaning Allah - then here is none to lead him astray, and whomever He misleads, then there is no guide for him. I testify that none has the right to be worshipped but Allah, and I testify that Muhammad is His worshipper and Messenger.'" He said: "And he recited three Ayat."

The Prophet (PBUH) said, "When Allah created Adam (PBUH), He said to him: 'Go and greet that company of angels who are sitting there - and then listen to what they are going to say in reply to your greetings because that will be your greeting and your off-spring's.' Adam (PBUH) said to the angels: 'As-Salamu 'Alaikum (May peace be upon you).' They replied: 'As-Salamu 'Alaikum wa Rahmatullah (May peace be upon you and the Mercy of Allah).' Thus adding in reply to him: 'wa Rahmatullah (and the Mercy of Allah)' to his greeting."

[Al- Bukhari and Muslim].

The Messenger of Allah (saws) intended to perform hajj.

A woman said to her husband: Let me perform hajj along with the Messenger of Allah (saws).

He said: I have nothing on which I can let you perform hajj. She said: You may perform hajj on your such-and-such camel. He said: That is dedicated to the cause of Allah, the Exalted. He then came to the Messenger of Allah (saws) and said: My wife has conveyed her greetings and the blessings of Allah to you. She has asked about performing hajj along with you. She said (to me): Let me perform hajj with the Messenger of Allah (saws). I said (to her): I have nothing upon which I can let you perform hajj. She said: Let me perform hajj on your such-and-such camel. I said: That is dedicated to the cause of Allah, The Exalted.

He replied: If you let her perform hajj on it, that would be in the cause of Allah.

He said: She has also requested me to ask you: What is that action which is equivalent to performing hajj with you?

The Messenger of Allah (saws) said: Convey my greetings, the mercy of Allah and His blessings to her and tell her that umrah during Ramadan is equivalent to performing hajj along with me.

"Allah's Messenger would teach us the Tashah-hud just as he would teach us the Qur'an. He would say: (At-Tahiyyatu, al mubarakatu, as-salawatu at-tayyibatulillah. Salamun alaika ayyuhan-naibiyyu wa rahmatullahi wa barakatuhu, salamun alaina wa ala ibadalillahis-salihin. Ashhadu an la ilaha illallah, wa ashhadu anna Muhammadan abduhu wa Raduluh.) 'All greetings, goodness, prayers, and pure words are for 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 there is none worthy of worship except Allah, and I testify that Muhammad is Allah's worshipper and Messenger.'"

“The Messenger of Allah (saw) addressed us and explained the Sunnah for us, and he taught us our prayer. He said: ‘When you perform prayer, and you are sitting, let the first thing you say be: At-Tahiyyatut-tayyibatus-salawatu lillah; as-salamu ‘alayka ayyuhan-Nabiyyu wa rahmatullahi wa barakatuhu; as-salamu ‘alayna wa ‘ala ‘ibadillahis-salihin. Ashhadu an la ilaha illallah wa ashhadu anna Muhammadan ‘abduhu wa Rasuluhu (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 none has the right to be worshipped but Allah and I bear witness that Muhammad is His slave and Messenger). Seven phrases which are the greeting of the prayer.’”