Shoyoroku - Case 58: "Getting Despised" in the Diamond Sutra [1]

The Diamond Sutra says,
  "It is about getting despised by other people. If you are to come into hell
   because of your sins in your previous life, these sins will be extinguished
   because you are despised by the people of this world."

[1]: see case 97 of Hekiganroku.