Does the prayer become void if the Abrahamic prayer is recited by mistake in the first Tashahhud and not completed, and the prostration of forgetfulness is not performed?

Scholars have differed on the ruling of reciting the Abrahamic Salawat (prayer) in the first Tashahhud, holding two opinions:

1. It should not be recited in the first Tashahhud. This is the view of Ibn Qudamah, Al-Nakha'i, Al-Thawri, and Ishaq. 2. It is recommended to recite it in the first Tashahhud. This is the new view of Al-Shafi'i, as well as the opinion of Al-Nawawi, Ibn Hubayra, Al-Ajurri, and Ibn Baz.

Based on the opinion that it is recommended, whoever recites it has performed a recommended act. Based on the opinion that it is not recommended, if one recites it by mistake, it is recommended for them to perform the prostration of forgetfulness (Sujud Al-Sahw) because they uttered a prescribed remembrance in an inappropriate place.