It was narrated that ‘Abdullah bin Mas’ud said: “When we performed prayer with the Prophet (ﷺ) we said: ‘Peace be upon Allah from His slaves, peace be upon Jibra’il and Mika’il and so-and-so and so-and- so.’ The Messenger of Allah (ﷺ) heard us and said: ‘Do not say peace (Salam) be upon Allah, for He is As-Salam. When you sit (during prayer) say: At-Tahiyyatu lillahi was-salawatu wat-tayyibatu; as- salamu ‘alayka ayyuhan-Nabiyyu wa rahmatullahi wa barakatuhu; as- salamu ‘alayna wa ‘ala ‘ibadillahis-salihin (All compliments, 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).” For as you say that it will reach every righteous slave in the heavens and on earth. (Then say:) “Ashhadu an la ilaha illallah wa ashhadu anna Muhammadan ‘abduhu wa Rasuluhu (I bear witness that none has the right to be worshipped but Allah, and I bear witness that Muhammad is His slave and Messenger).” (Another chain) with similar wording. (Another chain) that `Abdullah bin Mas`ud said: "The Prophet (ﷺ) used to teach us the Tashahhud." And he mentioned similarly.

It was narrated that Ibn ‘Abbas said: “The Messenger of Allah (ﷺ) used to teach us the Tashah-hud as he used to teach us a Surah of the Qur’an. He used to say: ‘At-Tahiyyatul-Mubarakatus salawatut-tayyibatu 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 blessed compliments and good 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).’”

It was narrated from Abu Musa Al-Ash’ari: “The Messenger of Allah (ﷺ) 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.’”

It was narrated that Jabir bin ‘Abdullah said: “The Messenger of Allah (ﷺ) 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).’”