Fact check (a real one, not as the media uses it): correct.
ARTICLE 12. In the U.S.S.R. work is a duty and a matter of honour for every able-bodied citizen, in accordance with the principle: "He who does not work, neither shall he eat."
The principle applied in the U.S.S.R. is that of socialism : "From each according to his ability, to each according to his work."
Fact check (a real one, not as the media uses it): correct.
https://www.marxists.org/reference/archive/stalin/works/1936/12/05.htm