Sunan Abi Dawud, Hadith 969 ⓘ
Ibn ‘Abbas said: The Messenger of Allah( may peace be upon him) used to teach us the tashahhud as he would teach us the Qur’an, and would say: The blessed adoration of the tongue, acts of worship (and) all good things are due to Allah. Peace be upon you, O Prophet, and Allah’s mercy and His blessings. Peace be upon us and upon Allah’s upright servants. I testify that there is no god but Allah, and I testify that Muhammad is Allah’s apostle (peace be upon him).
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا اللَّيْثُ، عَنْ أَبِي الزُّبَيْرِ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، وَطَاوُسٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّهُ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُعَلِّمُنَا التَّشَهُّدَ كَمَا يُعَلِّمُنَا الْقُرْآنَ وَكَانَ يَقُولُ " التَّحِيَّاتُ الْمُبَارَكَاتُ الصَّلَوَاتُ الطَّيِّبَاتُ لِلَّهِ السَّلاَمُ عَلَيْكَ أَيُّهَا النَّبِيُّ وَرَحْمَةُ اللَّهِ وَبَرَكَاتُهُ السَّلاَمُ عَلَيْنَا وَعَلَى عِبَادِ اللَّهِ الصَّالِحِينَ أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ اللَّهُ وَأَشْهَدُ أَنَّ مُحَمَّدًا رَسُولُ اللَّهِ " .
also referenced under: Hadith 974 (DarusSalam) & Book 3, Hadith 969 (USC-MSA)