Zaha joined Manchester United from Crystal Palace in January 2013 when Ferguson was in charge of the Red Devils.
The England international winger remained on loan at Palace for the second half of the 2012-13 season and joined up with the United squad in the summer of 2013.
The 23-year-old struggled to make an impact at Old Trafford and was on the fringes of the squad under David Moyes, who succeeded Ferguson as the United manager in the summer of 2013.
Holloway, who managed Zaha at Palace, has revealed what he told Ferguson about the winger before the Scotsman signed him.
“Fergie asked me (Zaha) whether he could win him games at the highest level and I said 'absolutely' as long as he started to understand his role without the ball,” Holloway told Sky Sports.
"What he has to learn is when to unleash his tricks and when to pass it. He also has to learn how to move when he hasn't got the ball.
“I was always on at him to score more goals by getting in the box, but he waits around for the ball to come to him. He wants players to pass to him.”
Zaha played on loan for Cardiff City in 2014 and after spending a period on loan at Palace, signed for the London club on a permanent contract in February 2015.
The 23-year-old’s performances at Palace have improved, and he does look a better player than he did at United, although there is still room for improvement.
The Englishman has scored one goal and created 14 chances in 12 Premier League matches for Palace so far this season.
Zaha has a pass accuracy of 79% and a shot accuracy of 75%, and has won four headers, 36 dribbles and 13 tackles.