The Integrals (or Pillars) of As-Ṣalāh Its basic, essential components which it is composed of; to such an extent that it is not permissible to not perform them in any situation. This means that they are not to be left out intentionally or unintentionally; except when there is a case of incapacity.

Firstly: The Integrals of As-Ṣalāh:
1- Intention

2- Standing in obligatory Ṣalāt (with ability to do that)
3- Initiating or the first Takbeer
4- Recitation of Al-Fatiha
5- Bowing
6- Rising upright from bowing
7- Prostrating on the seven parts
8- Sitting between the two prostrations

9- Sitting for the final at-Tashahud
10- Reciting the final at-Tashahud
11- Reciting blessings on the Prophet ﷺ during the final at-Tashahud.
12- At-Tasleem (the saying of as-Salaamu’alaykum which marks the end of Ṣalāt)
13- Serenity when performing every essential part of Ṣalāt.
14- Performing all of the above-mentioned essential parts in sequence


Source:Islamkingdom