Abu-al-Faraj Ibn Harun (Gregory Bar hebraeus). The book is entertaining stories (№ 221842)

A wise man said to the rich:
I swear in the name of God that when you leave this world, to anything so will not seek to return to it again and to do good, to be rewarded with eternal bliss and save ourselves from punishment. So do the same good deeds now while you are in this world before you leave it and will never be able to return again.