﴿ وَمَنْ أَرَادَ ٱلْءَاخِرَةَ وَسَعَىٰ لَهَا سَعْيَهَا وَهُوَ مُؤْمِنٌۭ فَأُو۟لَٰٓئِكَ كَانَ سَعْيُهُم مَّشْكُورًۭا ﴾

“But as for those who care for the [good of the] life to come, and strive for it as it ought to be striven for, and are [true] believers withal -they are the ones whose striving finds favour [with God]!”

(And whoso desireth the Hereafter) i.e. Paradise by performing that which was made obligatory upon him (and striveth for it with the effort necessary) strives to enter Paradise by performing the acts that lead to it, (being a believer) and besides this he is a sincere believer; (for such, their effort) their works (findeth favour (with their Lord)) their works are accepted. This verse was revealed about Bilal the Muezzin.