These verses, then, show that a person must seize the opportunity of his lifetime and not waste it as those people did; for he will be resurrected, recompensed, and called to account for his deeds. We ask Allah, the Exalted, to make us and you among those whose reckoning is easy and whose final destination is the everlasting abode in the gardens of bliss.
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The author—may Allah have mercy on him—said, while citing the relevant verses in the Chapter on Remembering Death and Curtailing Worldly Hopes:

Allah, the Most High, says: “Has the time not come for those who believe that their hearts should humble themselves to the remembrance of Allah and to the truth that has been revealed, and that they should not be like those who were given the Scripture before them? A long span of time passed over them, so their hearts hardened, and many of them are defiantly disobedient.” (Al-Hadid 57:16)

The verses on this topic are many and well-known; as for the hadiths:

1/574 – Ibn ‘Umar (may Allah be pleased with them both) reported: The Messenger of Allah (blessings and peace be upon him) took hold of my shoulders and said, “Be in this world as though you were a stranger or a traveler passing through.”

Ibn ‘Umar would also say, “When evening comes, do not expect to see the morning; and when morning comes, do not expect to see the evening. Take from your health for your illness, and from your life for your death.” Narrated by al-Bukhari. d

[Explanation]
The author, al-Nawawi (may Allah have mercy on him), says in his book Riyad al-Salihin—a work that truly lives up to its title, for it is a garden, a garden for the people of righteousness—in which there are rulings