Surah Al-Isra — Ayah 19 (17:19)
وَمَنۡ أَرَادَ ٱلۡأٓخِرَةَ وَسَعَىٰ لَهَا سَعۡيَهَا وَهُوَ مُؤۡمِنٞ فَأُوْلَٰٓئِكَ كَانَ سَعۡيُهُم مَّشۡكُورٗا ١٩
English translation (Saheeh International)
But whoever desires the Hereafter and exerts the effort due to it while he is a believer - it is those whose effort is ever appreciated [by Allāh].
Brief commentary
But whoever desires, by his acts of goodness, the reward of the Hereafter, and pursues it as it should be pursued, free of show and reputation, while he has faith in that which Allah has made faith obligatory; these people who have these attributes - their effort will be accepted by Allah and He will recompense them for it.