מדרש על נזיר 45:5

R. Nachman b. R. Chisda lectured: "What is the meaning of the passage (Ecc. 8, 14) There is a vanity which is done upon the earth; that there are righteous men unto whom it happeneth according to the work of the wicked, etc.? This means: "Happy are the righteous whose fate in this world is like that of the wicked in the world to come; and woe is to the wicked whose fate in this world is like that of the righteous in the world to come." Raba raised the following objection: "Is it then impossible that the righteous be rewarded in both this and the world to come?" Therefore said Raba: "Happy are the righteous whose punishment for their wrongdoings in this world is like the reward which Heaven grandteth the wicked for their good deeds in this world, and woe to the wicked whose fate of reward in this world is like the fate of punishment of the righteous for their bad deeds in this world." R. Papa and R. Huna b. R. Joshua came to Raba and the latter questioned them: "Have ye learned thoroughly this and that treatise of the Talmud?" To which they responded: "Yea." "Have ye become a little rich [so that ye have time to study uninterruptedly]?" They said: "Yea, we have bought little parcels of land." He then applied to them the above, Happy are the righteous whose fate in this world, is like the fate of the wicked in this world. Rabba b. b. Chana said in the name of R. Jochanan: "What is the meaning of the passage (Hos. 14, 10) For righteous are the ways of the Lord," etc. This may be likened unto two men who, etc. [as fully explained in Vol. 3, page 139].