Amr bn Maymun al-Awdi narrated that Allaah's messenger (peace and blessings of Allaah be upon him) said to a man in course of an exhortation, "Grasp five things before five others: Your youth before your old age,your health before your illness, your riches before your poverty, your leisure before your work, and your life before your death." [Tirmidhi]