Fear Allāh, O servants of Allāh! And make your deeds sincerely for Allāh, the Mighty and Majestic (alone).
Then know, that it is a must to be persistent upon righteous deeds until death. He, the Most High, said (what means): {And worship your Lord until there comes unto you the certainty (i.e death).} [al-Ḥijr: 99].
Meaning, until you die. There is no aim or end for the actions of a Muslim except death.
Hence, guard your righteous deeds strictly and be persistent upon them until you meet your Lord, the Exalted and Most High, with them. For it is the reason for your salvation and your success on the day of resurrection.
As for this worldly affair, its wealths and its adornment; it will surely depart. And nothing will remain with you except the deed which you left this world with – whether it was a good or bad deed.