Forest have made a number of loan acquisitions recently and Al-Hasawi insists that they were all signed as a result of former chief executive Paul Faulkner's and ex-manager Stuart Pearce's recommendations.
Faulkner left Forest last month after Pearce was dispensed with as manager, and Al-Hasawi revealed today that he still has no idea why he opted to take this course of action.
"I gave him all authority," he insisted in an interview with BBC Sport. "All the players he brought, he decided with the manager [Stuart Pearce]. He brought, for example, Thomas Ince, the player from Chelsea [Todd Kane], Gardner from Aston Villa.
"All these players the chief executive Paul Faulkner and the manager, of course, Stuart Pearce they are the ones who bought them. They put me on the phone and I told to Paul, if the manager is happy do the deal.
"He was the one who was doing the deal. He's the one who was taking with the player. He's having full authority from me to bring players to the club. I don't know why he left."
Al-Hasawi's ownership of Forest has come under heavy scrutiny recently, with Pearce's controversial sacking being followed by the news that Forest had failed to pay Peterborough United for Britt Assombaloga.
The Reds allegedly owed Posh £1.5 million for Assombalonga, but that debt has now been paid off, the BBC reports, and Al-Hasawi will be looking to prove that he can be the right man to bring success to Forest.
The Midlands side are desperate to gain promotion to the Premier League, but their chances of doing so already look extremely slim.
Forest are currently 12 points behind the play-offs and the task for new manager Dougie Freedman will be to ensure that next season is not such a disappointing one.