The reports published by the Ministry of Health of the Russian Federation and the World Health Organisation disproves the statement.
The Ministry of Health of the Russian Federation released a report regarding novel coronavirus stating that the virus is suspected to be a recombinant virus between bat coronavirus and an unknown origin coronavirus (Ref page no. 05). But, the report has nowhere mentioned that the virus is artificial.
A video by ANI shows that Chinese Ambassador to India Sun Weidong in a press conference said that the novel coronavirus originated from nature, and it is not manmade. The World Health Organisation's report also mentioned that that COVID-19 virus has a DNA identity of 96% to a bat. (Ref page no.04)
By these reports, it can be concluded that Russia’s Ministry of Health had not made any such statement that COVID-19 is a man-made virus.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.