But Russell told BBC Radio Nottingham: "It's a fantastic achievement but I don't want them speaking about Wembley any more now - it's gone.
"We'll worry about that closer to the time. They have to remain professional, they are playing for their places."
Mansfield, who still have 13 games left in the Blue Square Bet Premier season, progressed thanks to a last-gasp penalty which earned them a
1-1 draw at Kenilworth Road and a 2-1 aggregate victory.
And Russell said the trip to Wembley will be a wonderful reward after a turbulent few seasons which has seen lose their place in the Football League and suffer an uncertain time off the pitch.
"I'm so happy for all those involved at Mansfield Town - not just the football club but everybody in Mansfield," Russell added.
"The fans have not had a lot to shout about in the last couple of years. Things like this bring a town together.
"It's massive. The club have to benefit from it and use it wisely."
And Russell, who was part of the coaching set-up when
Milton Keynes won the Football League Trophy in 2008,
was also relishing the chance to walk out as a manager at the home of football.
"To walk my team out at Wembley will be unbelievable," Russell added. "I'm very proud I will wait for May 7th and will thoroughly enjoy it."
Hungarian goalkeeper David Grof, who only joined the Stags in February and has been playing because of an injury to
fit-again first-choice keeper Alan Marriott,
was stunned by the prospect of playing at the home of English football.
"I can't believe it," he said. "It's a dream come true - not just for me but for my whole family. It's unbelievable.
"When I grew up, English football was the best for me and I have been following it since I was little.
"I always wanted to play in England and now I am actually going to the national stadium. Honestly, it's unbelievable. I'm only 21 so playing there so quick is amazing."
Source: BBC Sport
Source: BBC Sport