obligations

Assalamu aalikum!What are the obligatory parts pf prayer, to make it valid? (As a way to gradually teach new Muslims)

Dear scholars of Islam, As-Salaam `Alaykum wa Rahmatullah wa Barakatuh. I believe that the root-cause of Muslims’ agony nowadays is their indifference to the Qur’an. Please, comment on this serious issue by stating the duties of the Muslims towards the Qur’an.