The Ivory Coast international complained to the match referee that he was being targeted with racist abuse during City's Champions League 2-1 victory in Russia on Wednesday.
"I am not deaf," Toure told BBC Afrique. "Other people must have seen it. We are all humans. It is not a nice feeling to go and play a football match, to bring joy to the people and to be called a monkey or to hear monkey noises. I don't look like a monkey.
"Doumbia is a young brother. Someone I admire who I have known a long time, we come from the same country. I don't want to say things that will put him in trouble but you can see a little bit the manipulation around all this. It is so pathetic and so sad to see things like that. I am ashamed to still have to talk about this subject."
UEFA have opened disciplinary proceedings against CSKA after receiving a written complaint from City.