What is Said in the Sitting Position

At-Tashahhud:

At-Tahiyyatul-mubarakat, as-salawatut-tayyibatu lillah. As¬Salamu ^alayka ayyuhan-Nabiyyu wa rahmatullahi wa barakatuh. As-Salamu ^alayna wa ^ala ^ibadillahis-salihin Ashhadu alla ‘ilaha illallah, wa ashhadu anna Muhammadar-Rasulullah. (End of the Tashahhud)

As-Salatul-‘Ibrahimiyyah 

Allahumma salli ^ala Muhammad, (This completes the obligation) wa ^ala ‘Ali Muhammad, kama sallayta ^ala ‘Ibrahim, wa ^ala ‘Ali ‘Ibrahim. ‘Innaka Hamidum Majid. Allahumma barik ^ala Muhammad, wa ^ala ‘Ali Muhammad, kama barakta ^ala ‘Ibrahim, wa^ala ‘Ali ‘Ibrahim. ‘Innaka Hamidum Majid.

The Meaning of the Tashahhud and Salatul-’Ibrahimiyyah

The blessed salutations, Five Prayers, and the good deeds are all owned by Allah. 0 Prophet of Allah, may the safety from infirmities, and the mercy of Allah and His blessings be upon you. May safety be upon us and upon the righteous slaves of Allah.
 
I profess (know, believe, and declare) that no one is God but Allah, and I profess that Muhammad is the Messenger of Allah.

0 Allah, we ask You to raise the rank of Muhammad, and have mercy upon the Al (wives, Muslim kin, and pious Muslim followers) of Muhammad, as You raised the rank of Ibrahim, and the Al of Ibrahim. Verily, You are the One Who deserves to be praised and thanked, and the One Who is glorified. 0 Allah, we ask You to bless Muhammad, and the Al of Muhammad, as You blessed Ibrahim, and the Al of Ibrahim. Verily, You are the One Who deserves to be praised and thanked, and the One Who is glorified.