Earn virtues in your spare time, because,

Your death might come upon a sudden,

Many healthy people I have seen who were free of disease,

But then their soul parted upon a sudden.

—Muhammad b. Ismaa’eel al-Bukhari

(Read on pg 137-138, Salaahud-Deen ibn ‘Alee ibn ‘Abdul-Maujood, The Biography of Imam Bukhaaree. Darussalam. Riyadh: 2005.)