Premanand Maharaj Ji
निंदा करने या सुनने से मुझे क्या नुकसान होता है?
निंदा से हाथ कुछ नहीं आता
Criticising or listening to criticism of others gains you nothing and loads their sin onto you. Avoid both. Avoiding criticism of others and praise of yourself makes your parmarth firm.
When we speak or listen to someone's criticism, we gain nothing. On top of that, that person's sin gets loaded onto us.