Sahih Bukhari Volume 003, Book 039, Hadith Number 538.
Narated By Abu Huraira : Once the Prophet was narrating (a story), while a bedouin was sitting with him. "One of the inhabitants of Paradise will ask Allah to allow him to cultivate the land. Allah will ask him, 'Are you not living in the pleasures you like?' He will say, 'Yes, but I like to cultivate the land.' " The Prophet added, "When the man (will be permitted he) will sow the seeds and the plants will grow up and get ripe, ready for reaping and so on till it will be as huge as mountains within a wink. Allah will then say to him, 'O son of Adam! Take here you are, gather (the yield); nothing satisfies you.' " On that, the bedouin said, "The man must be either from Quraish (i.e. an emigrant) or an Ansari, for they are farmers, whereas we are not farmers." The Prophet smiled (at this).