Bruce signed Elmohamady for Sunderland in 2010, and then brought the 25-year-old to the Tigers on loan at the start of the 2012-13 season.
Elmohamady went on to play a part in Hull's promotion to the Premier League, secured when the Tigers clinched second place in the Championship, and he subsequently made a permanent £2m move to the KC Stadium.
Initial doubts from Elmohamady about the risks of dropping down a division were calmed by Bruce, and the Egyptian is keen to repay the faith shown by the Tigers boss.
"I spoke with Brucey and told him it's a risk for me to go from the Premier League to the Championship," Elmohamady told The Independent.
"But because he is experienced he told me it's not a risk, it's good to play football again, to show everyone you're a good player and to show the manager of the national team. The Championship is not bad, it's a good league, very strong physically, just have a one-year loan and you will see after.
"I spoke with a lot of people - my agent, my wife, friends, and some people told me I had to think - but I took his advice. He was captain of Manchester United, he has a lot of brains and experience, and now I'm back in the Premier League.
"He is experienced, he knows everything, and he is right."