Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Amr bin Maymoon that the Noble Prophet Muhammad (peace and blessings be upon him) said to a man: "Consider five things as a blessing before five things: your life before your death, your free time before your preoccupation, your wealth before your poverty, your youth before your old age, and your health before your illness. (Consider them a blessing)"