Rooney, 31, apologised this week after being pictured looking the worse for wear as he mingled with guests at a wedding party at the England team hotel last weekend.
Mourinho said Rooney was fit to face Arsenal on Saturday after withdrawing from England duty with a minor knee injury, but did not want to discuss the specifics of what had happened.
"Over the last two, three days, nothing happened. He trained like everybody else, he wants to plays like everybody else," Mourinho told reporters at the United training centre west of Manchester.
"My players, when they go to the national team, they belong to the national team. What happens there -- for good, for bad -- I don't interfere and I don't like to comment."
Some media reports suggested Mourinho had been unhappy with the Football Association for not supervising Rooney more closely after England's players were given a night off last Saturday.
But he said he just wanted to draw a line beneath the affair.
"Sometimes they come back stronger than when they left us because something positive happens there; good performances, good results," Mourinho said.
"In this case we know what didn't go well, but the national team is a different chapter and a chapter that is closed now until March or the end of February."
Rooney played in England's 3-0 World Cup qualifying win over Scotland last week, but was withdrawn from the squad due to a knee injury and missed Tuesday's 2-2 draw with Spain.
He has struggled for playing time for United of late, although he started their last two games prior to the international break.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
