Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: The Prophet Muhammad (peace be upon him) used to teach us the Tashahhud just as he used to teach us a surah from the Qur'an. He used to recite: "All blessed verbal acts of worship and all pure physical acts of worship are exclusively for Allah. O Prophet, peace be upon you, and the mercy and blessings of Allah. Peace be upon us and upon all the righteous servants of Allah. I bear witness that there is no deity except Allah, and I bear witness that Muhammad is the Messenger of Allah."