Man Utd coasted to a comfortable 3-0 win over Sunderland on Sunday, boosting their hopes of finishing in the top four in the Premier League.
United have 57 points from 30 games, four behind fourth-placed Manchester City having played a game less.
With regards to what the three points means to their season, Mourinho continued: "The result was good".
"We have to keep focussing, working and believing we will reach the top four", Ibrahimovic added.
Luke Shaw made a surprise return just days after Mourinho had questioned the full-back's commitment and delivered a polished performance as the Red Devils stretched their unbeaten Premier League run to 21 games. The opposition was not creating big problems but he was confident with the ball, went forward with some danger.
"He hasn't travelled. Normally Sergio plays in the Europa League and that is next Thursday so that's not ideal for him at all". I want us fighting for trophies.
The full-back was a surprise inclusion in the starting line-up and set up Henrikh Mkhitaryan's goal in what proved to be a routine win over the league's bottom club, who had Sebastian Larsson sent off in the first half.
"You need these players sometimes to make it and normally every top team has a couple of them that can make a difference".
Before the referee blew the whistle for half-time, the Black Cats were reduced to 10-men when Seb Larsson was given questionable red card for his challenge on Ander Herrera.
Moyes' overall thoughts: "I'm disappointed we haven't take anything from the game and I think there was mitigating circumstances for that, but ultimately we're not here to blame referees".
Moyes, who is expected to face censure by the Football Association this week for the unfortunate comments he directed at the BBC's Vicki Sparks last month, also rebutted suggestions that his players might already have surrendered. "We did that and, apart from that, no more injuries to add to a hard list we have because we don't hide that we are still fighting for our situation in the Premier League".
"I wanted him to play a little bit more".
Ibrahimovic, 35, has 28 goals in all competitions and Bailly said: "He has a great value amongst the team".