"Allah's Apostle took hold of my shoulder and said, 'Be in this world as if you were a stranger or a traveler." The sub-narrator added: Ibn 'Umar used to say, "If you survive till the evening, do not expect to be alive in the morning, and if you survive till the morning, do not expect to be alive in the evening, and take from your health for your sickness, and (take) from your life for your death."
"There are two blessings which many people lose: (They are) Health and free time for doing good." Narrated Ibn 'Abbas
We were in the company of Allah's Apostle in (the battle of) Al-Khandaq, and he was digging the trench while we were carrying the earth away. He looked at us and said, "O Allah! There is no life worth living except the life of the Hereafter, so (please) forgive the Ansar and the Emigrants." Narrated Sahl bin Sa'd As-Sa'idi