Indeed, I am Lord Allah; there is no deity except Me, so you serve Me and you establish prayer for keeping the Book Dhikree.
All 313 Messengers are sent down with the Truth and Proof-Adhikr- to warn mankind that there is no deity except Lord Allah and so serve Him alone as explained in verses 21: 24-25. Dhikree is one of the 40 names of Adhikr. So as explained in verses 2: 2-5 one should keep up the prayer to keep up Adhikr. Today, Adhikr is formed as the Splendid Book. So whoever doesn’t see and hear It from among the Arabic Quran reading Fujjar, they are the disbelievers into Hell as explained in verse 18: 101. Lord will tell them at the time of death: “You have not testified Adhikr, so you didn’t perform the prayer, but you have rejected and turned back” as told in verses 75: 31-32. As there is no group of believers anywhere in the world, the odd believer follows the prayer and lifestyle as explained in verses 7: 205-206. See explanation 9: 53-55 and 10: 100.