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.