(16) باب التَّشَهُّدِ فِي الصَّلاَةِ
Tawus narrated it on the authority of Ibn 'Abbas that he said:
The Messenger of Allah (ﷺ) used to teach us tashahhud as he would teach us a Sura of the Qur'an.
Reference: Sahih Muslim 403 b
In-book reference: Book 4, Hadith 65
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 799