It wasnarrated that Ibn 'Abbas said:
"The Messenger of Allah (ﷺ)usedto teach us the Tashah-hud as he used to teach us a Surah of theQur'an. He used to say: 'At-Tahiyyatul-Mubarakatussalawatut-tayyibatulillah; As-salamu 'alayka ayyuhan-Nabiyyu warahmatullahi wabarakatuhu; as-salamu 'alayna wa 'ala'ibadillahis-salihin. Ashhadu anla ilaha illallah wa ashhadu annaMuhammadan 'abduhu wa Rasuluhu (Allblessed compliments and goodprayers are due to Allah; peace be uponyou, O Prophet, and the mercyof Allah and His blessings; peace beupon us and upon the righteousslaves of Allah. I bear witness thatnone has the right to beworshipped but Allah and I bear witness thatMuhammad is His slaveand Messenger).'"
English reference: Vol. 1, Book 5, Hadith 900
Arabic reference: Book 5, Hadith 953