This was the text (translated):
Do you consider it necessary to preserve the Union of Soviet Socialist Republics as a renewed federation of equal sovereign republics, in which the rights and freedoms of a person of any nationality will be fully guaranteed?
Note the lack of citation.
Also yeah Yeltsin was a real hero, just don’t ask what he did after he bombarded parliament, and don’t ask why the US had to interfere in former USSR elections including the 1996 Russian election to make sure that nationalists and not communists won.