IMF says 500 million people worldwide who were out of poverty will or have returned to poverty because of the recession. It's a relevant perspective, but I can

IMF says 500 million people worldwide who were out of poverty will or have returned to poverty because of the recession. It's a relevant perspective, but I can't seem to find any source for IMF claiming that. Do you have one or are you referring to research publicized by Oxfam[1]? [1] https://www.bbc.com/news/business-52211206 https://www.bbc.com/news/business-52211206