致富光荣 (zhìfù guāngróng: To get rich is glorious!)
However, this phrase in Chinese is more accurately translated as "wealth is glorious," where wealth can have a very general meaning, including knowledge, personal relationships, family: anything of value. Understood this way, the quote is not as directly controversial as a ideological/political statement, and so it is not hard to believe that he really did say this.
More quotes by Deng Xiaoping
It doesn't matter whether the cat is black or white, as long as it catches mice.
A basic contradiction between socialism and the market economy does not exist.
If you open a window for fresh air, you have to expect some flies to blow in.
Attribution
Quote text and notes from Wikiquote: Deng Xiaoping (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.