Guardiola, in turn, has demanded more clarity from Arteta - especially as City find themselves embroiled in a legal lawsuit over 115 breaches of the Premier League's financial rules.
"Next time, Mikel has to be more clear," said Guardiola. "He has to be clear next time about exactly what he means that he was here for four years and he knows exactly what happened here.
"Because it could be related to the process with 115 charges, he may know information about that, maybe. I don't know. Next time, he has to say [it more] clearly. Instead of having clouds there, [he needs] to be more precise."