Chelsea have seen two offers for Rooney rebuffed by United, who insist the England striker is not for sale.
Mourinho will test that resolve, but not until after the trip to Old Trafford.
"I don't want Chelsea to do it before we go there," said Mourinho, following Chelsea's 2-1 defeat of Aston Villa.
"Everybody in the club, in the board, they agree with me. They share that opinion.
"I think this period, by the ethical point of view, is a period where we're going to be quiet."
Source: PA
Source: PA