Is it permissible to recite the Ibrahimiyyah Prayer before the Tashahhud in the last sitting?

The basic principle is that the worshipper should recite the Tashahhud before the Salawat al-Ibrahimiya (Ibrahimic prayers). If one recites the Salawat al-Ibrahimiya first, then they must repeat it after the Tashahhud, and the first recitation is not counted. There is no prostration of forgetfulness required for intentionally doing so, because verbal additions, if they are from what is legislated in prayer, do not necessitate a prostration of forgetfulness.