WHAT DOES JANNAH FIRDAUS MEAN?

“Allah, the Exalted reported: I built 5 periods’ prayers obligatory on your own men and women, And that i took a ensure that if everyone observes them consistently at their times, I shall confess him to Paradise; if any one doesn't offer you them routinely, there is not any such assure of Mine for him” (Abu Dawud)Such as, Qu'ran 23:17 states