And amid the talks surrounding Tau's future, which many South African supporters have expressed displeasure of leaving the English top-flight Mosimane expressed why it would be a great move for the 27-year-old.
"Let him come to play in the Club World Cup against Bayern Munich and dribble Bayern. Percy is a showman‚ he is like Lionel Messi," he said via Instagram Live with Casper Nyovest on Monday.
"Percy has been in Europe for about four years and let’s be honest‚ we haven’t seen him play. We saw him play football in Belgium but SA teams can [challenge] against those Belgium teams.
"At Al Ahly we can compete and we can go toe-to-toe with Bayern Munich‚ who took 75 minutes before they scored a goal against us‚ and that means we are a credible team."
Mosimane added: "Percy hasn’t played football and he is approaching 28 years now‚ do you want him to retire without having played football?
"At the moment he is not showing people what he is capable of‚ he is about to retire and those things are important. People are saying he is downgrading but he is not playing where he is at the moment and he will play at Al Ahly."
Tau is expected to complete his move to the Club of the Century in the coming days with an initial fee of R10m to secure his services before the add-ons.