Van Persie, United’s attacker has not appeared on the fields since his only goal against Arsenal at Old Trafford in early November.
He has not appeared since a refusal of substitute’s transfer against Shakhtar Donetsk in the UEFA Champions League last month and has been out the Premier League champions’ for the last nine games.
Reports which were spotted over the web about his return to be not before another Si-weeks, but Moyes insisted that those reports are wrong and he would be back soon.
“I don’t know where that has come from,” said Moyes after United’s 2-0 home win over Swansea on Saturday. “That would be wrong information as far as I am concerned.”
Speaking before the game, Moyes confirmed that Van Persie has recently been back in his native Holland to undergo treatment on the injury.
The United boss added: “We’re trying to get Robin back. He’s got a thigh strain similar to the one he had at Arsenal [in the second half of the 2007/2008 season].
“He never had an injury all last season. He took a corner against Shakhtar and felt his thigh so it was a freak thing really and not [aggravating] an injury he’d had before.
“It’s a different injury. We have to manage it correctly and he’s been to Holland to see a guy he works with there. So we’re doing everything we can to give him the right treatment and get him back as soon as we possibly can. But I don’t want to put a date on his return.”