"Regarding Georges St-Pierre, that fight really inspires me," Khabib said during a media event in Russia.

"It was my father’s dream fight. But time passes, Georges St-Pierre will be 40 next year. I think he has to decide whether we’ll fight or not."

As we previously reported, Khabib's father, Abdulmanap, died from COVID-19 complications back in July.

But, Khabib says he wants to make his dad's dream come true -- saying "I want that fight."

"If I beat [Justin Gaethje] in October, then fight St-Pierre in April before Ramadan, that would be ideal."

The issue -- 39-year-old GSP has repeatedly said he's retired. Though he admitted back in July he would consider another fight if Dana White had the right offer.

Dana must've been listening ... because Khabib says White is down to make it happen.

"Dana told me after this fight they’ll talk to St-Pierre. If he agrees, we’ll fight. Both I and the UFC want that to happen."

GSP was called out by reigning UFC welterweight champ Kamaru Usman recently -- but told TMZ Sports, "I think for me it's better if I stay retired ... It's not worth it for me."

George told us he feels extremely grateful to leave the fight game with all of his faculties and wouldn't want to compromise that.