Sunan Ibn Majah Book 5, Hadith 97
“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.
“When praying at night (Qiyamul-Lail), the Messenger of Allah (ﷺ) used to say between the two prostrations: ‘Rabbighfir li warhamni wajburni warzuqni warfa’ni (O Lord, forgive me, have mercy on me, improve my situation, grant me provision and raise me in status).’”
“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).’”