Be in this world as a stranger

On the authority of Ibn Umar (may Allah be pleased with him and with his father), who said: “The Messenger of Allah (may Allah bless him and grant him peace) took me by the shoulder and said: "Be in this world as though you were a stranger or a traveller on the road."

Related by al-Bukhari. Ibn Umar (may Allah be pleased with him and with his father) used to say: “When evening comes, do not await the morning; and when morning comes, do not await the evening. Take from your health for your illness, and from your life for your death.”

[al-Bukhari 6416]