Take advantage of five matters before five other matters

Ibne Abbas radi Allahu anhu reports  in the mustadrak of Al-Haakim, musnad Imam Ahmad, and others, with an authentic chain of narration. In this hadith the Prophet Sallallaho Alaihi Wasallam said to a man while he was advising him:

"Take advantage of five matters before five other matters:

• 1)      your youth, before you become old;
• 2)      your health, before you fall sick;
• 3)      your richness, before you become poor;  
• 4)      your free time before you become busy;
• 5)      And your life, before your death.